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[nazev] => Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate
[nazev_orig] => Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate
[duvernost_udaju_id] => S
[popis] => Statement of problem. Intraoral scanning is currently becoming the standard method for imaging the maxilla in patients with cleft lip and palate. However, the reliability of intraoral scans compared with traditional conventional impression methods has not yet been sufficiently described and examined in detail in newborns with severe types of cleft lip and palate. Purpose. The purpose of this clinical study was to assess the reliability and agreement between intraoral scanning and traditional impression methods for maxillary measurements in newborns with unilateral and bilateral cleft lip and palate (U/BCLP). A secondary aim was to evaluate the consistency of maxillary measurements obtained with and without general anesthesia. Material and methods. Six newborns with cleft lip and palate underwent 4 maxillary impression methods (silicone impression and 3-dimensional (3D) scan, with and without anesthesia). Intra-and inter-observer reliability was assessed by 3 clinicians using intraclass correlation coefficient, median absolute deviation, and median relative deviation (alpha=.05). Results. The intraclass correlation coefficient values for both inter-observer and intra-observer reliability indicated excellent agreement (ICC>.90, P<.05) for maxillary dimension measurements. Acceptable variability was observed because of differences in reference point identification by clinicians and across data collection methods. Conclusions. When assessing the maxilla in U/BCLP patients, both intraoral scanner and traditional impression techniques showed excellent reliability and agreement in measurements, whether performed while the newborns were awake or under general anesthesia. (J Prosthet Dent 2025;134:275-282)
[popis_orig] => Statement of problem. Intraoral scanning is currently becoming the standard method for imaging the maxilla in patients with cleft lip and palate. However, the reliability of intraoral scans compared with traditional conventional impression methods has not yet been sufficiently described and examined in detail in newborns with severe types of cleft lip and palate. Purpose. The purpose of this clinical study was to assess the reliability and agreement between intraoral scanning and traditional impression methods for maxillary measurements in newborns with unilateral and bilateral cleft lip and palate (U/BCLP). A secondary aim was to evaluate the consistency of maxillary measurements obtained with and without general anesthesia. Material and methods. Six newborns with cleft lip and palate underwent 4 maxillary impression methods (silicone impression and 3-dimensional (3D) scan, with and without anesthesia). Intra-and inter-observer reliability was assessed by 3 clinicians using intraclass correlation coefficient, median absolute deviation, and median relative deviation (alpha=.05). Results. The intraclass correlation coefficient values for both inter-observer and intra-observer reliability indicated excellent agreement (ICC>.90, P<.05) for maxillary dimension measurements. Acceptable variability was observed because of differences in reference point identification by clinicians and across data collection methods. Conclusions. When assessing the maxilla in U/BCLP patients, both intraoral scanner and traditional impression techniques showed excellent reliability and agreement in measurements, whether performed while the newborns were awake or under general anesthesia. (J Prosthet Dent 2025;134:275-282)
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[citace_text] => KOŠKOVÁ, O.; BORÁK, L.; WANDA, U.; BRYŠOVÁ, A.; NOVÁKOVÁ, M.; RICHTROVA, M.; STREIT, L.; ŠTOURAČ, P.; MARCIÁN, P. Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate. The Journal of prosthetic dentistry, 2025, vol. 134, no. 1, p. 275-282. ISSN: 0022-3913.
[citace_html] => KOŠKOVÁ, O.; BORÁK, L.; WANDA, U.; BRYŠOVÁ, A.; NOVÁKOVÁ, M.; RICHTROVA, M.; STREIT, L.; ŠTOURAČ, P.; MARCIÁN, P. Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate. The Journal of prosthetic dentistry, 2025, vol. 134, no. 1, p. 275-282. ISSN: 0022-3913.
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author="Olga {Košková} and Libor {Borák} and Urbanová {Wanda} and Alena {Bryšová} and Magda {Nováková} and Michaela {Richtrova} and Libor {Streit} and Petr {Štourač} and Petr {Marcián}",
title="Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate",
journal="The Journal of prosthetic dentistry",
year="2025",
volume="134",
number="1",
pages="275--282",
doi="10.1016/j.prosdent.2025.02.054",
issn="0022-3913",
url="https://www.sciencedirect.com/science/article/pii/S0022391325001970"
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[nazev_en] => Comparison of silicone impressions with intraoral 3D scans in newborns with cleft lip and palate
[popis_en] => Statement of problem. Intraoral scanning is currently becoming the standard method for imaging the maxilla in patients with cleft lip and palate. However, the reliability of intraoral scans compared with traditional conventional impression methods has not yet been sufficiently described and examined in detail in newborns with severe types of cleft lip and palate. Purpose. The purpose of this clinical study was to assess the reliability and agreement between intraoral scanning and traditional impression methods for maxillary measurements in newborns with unilateral and bilateral cleft lip and palate (U/BCLP). A secondary aim was to evaluate the consistency of maxillary measurements obtained with and without general anesthesia. Material and methods. Six newborns with cleft lip and palate underwent 4 maxillary impression methods (silicone impression and 3-dimensional (3D) scan, with and without anesthesia). Intra-and inter-observer reliability was assessed by 3 clinicians using intraclass correlation coefficient, median absolute deviation, and median relative deviation (alpha=.05). Results. The intraclass correlation coefficient values for both inter-observer and intra-observer reliability indicated excellent agreement (ICC>.90, P<.05) for maxillary dimension measurements. Acceptable variability was observed because of differences in reference point identification by clinicians and across data collection methods. Conclusions. When assessing the maxilla in U/BCLP patients, both intraoral scanner and traditional impression techniques showed excellent reliability and agreement in measurements, whether performed while the newborns were awake or under general anesthesia. (J Prosthet Dent 2025;134:275-282)
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[popis] => Small punch testing is a well-established testing technology in situations where only tiny fragments of material are at disposal. In addition to the identification of the basic characteristics of the material, the ductility is an important output of such testing. Many existing ductile fracture models could be used for such identification, but the simplicity of the model is, in addition to its reliability, an important feature. The reason is that a limited number of experiments with the same type of specimen prevents the reliable identification of sophisticated ductile fracture models with many material parameters. That is why the work is focused on simple one-parameter criteria such as Rice and Tracey dependent on stress triaxiality, or Cockroft–Latham–Oh related to maximum principal stress, normalized by the equivalent stress. These are calibrated first by notched cylindrical specimens loaded in tension only and second by a set of broader variety of experiments under different stress states. The results of both the ductile fracture models and identification strategies with respective material constants are then applied to the numerical simulation of the small punch testing with element erosion to see their predictability of crack formation and propagation.
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[nazev] => Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study
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[duvernost_udaju_id] => S
[popis] => This study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.
[popis_orig] => This study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.
[klicova_slova] => Proximal ulna comminuted fracture; Elbow joint; Olecranon fracture; Finite element analysis; Locking compression plate; Interfragmentary motion
[klicova_slova_orig] => Proximal ulna comminuted fracture; Elbow joint; Olecranon fracture; Finite element analysis; Locking compression plate; Interfragmentary motion
[url] => https://josr-online.biomedcentral.com/articles/10.1186/s13018-025-06031-4
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[citace_text] => ŠAFRAN, J.; PAVLACKÝ, T.; MARCIÁN, P.; HERŮFEK, R.; VESELÝ, R. Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study. Journal of orthopaedic surgery and research, 2025, vol. 20, no. 1, p. 1-16. ISSN: 1749-799X.
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[citace_rtf] =>
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author="Jindřich {Šafran} and Tomáš {Pavlacký} and Petr {Marcián} and Radim {Herůfek} and Radek {Veselý}",
title="Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study",
journal="Journal of orthopaedic surgery and research",
year="2025",
volume="20",
number="1",
pages="1--16",
doi="10.1186/s13018-025-06031-4",
url="https://josr-online.biomedcentral.com/articles/10.1186/s13018-025-06031-4"
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[nazev_en] => Analysing plate fixation of a comminuted fracture of the proximal ulna in relation to the elbow joint: a finite element study
[popis_en] => This study investigated the biomechanical behavior of four different screw configurations used to fix comminuted proximal ulna fractures with a locking compression plate (LCP), via a detailed finite element model based on realistic anatomical geometry. The model incorporated realistic anatomical geometry including both cortical and cancellous bone, soft tissue constraints, and loading conditions representing the physiological self-weight of the forearm, with the humerus fixed at its proximal end. The stress distribution on the plate, strain intensity within the bone tissue, and interfragmentary motion (IFM) between fracture fragments were evaluated for each configuration. The results indicate that all the tested configurations provide adequate stability under normal loading conditions, with no risk of material failure. However, excessive stress concentrations were observed in specific screw regions depending on the configuration, particularly when proximal screws anchoring the olecranon (e.g. screws 2 and 3 in Variant 3) were omitted. Strain analysis revealed moderate physiological bone loading across variants, whereas IFM assessment highlighted the importance of securing the coronoid and apical fragments to prevent compromised healing. These findings suggest that a specific reductions in osteosynthetic material, such as omitting certain diaphyseal screws while maintaining crucial olecranon and coronoid fixation, may provide sufficient fracture stabilisation under the modelled conditions, potentially minimising implant-related complications. This modelling approach offers a valuable tool for preclinical assessment of osteosynthesis strategies and supports future comparative research on fixation methods with varying biomechanical properties.
[klicova_slova_en] => Proximal ulna comminuted fracture; Elbow joint; Olecranon fracture; Finite element analysis; Locking compression plate; Interfragmentary motion
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[popis] => Nowadays, optical strain measurement using the digital image correlation (DIC) method is a frequently used experimental analysis method in various engineering fields. The main advantage is that it is a non-invasive method, therefore it is possible to analyze areas on structures that could be inaccessible to conventional contact methods. This paper aims to present various applications of the use of the digital image correlation method in biomechanical applications and specific case studies are presented using a commercial software Alpha from X-Sight company.
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title="Various Applications of the Digital Image Correlation Method in the Experimental Analysis of Biomechanical Problems",
booktitle="EAN 2024 - 62nd International Conference on Experimental Stress Analysis, Book of Extended Abstracts",
year="2024",
pages="6",
publisher="University of West Bohemia in Pilsen",
address="Bozi Dar",
isbn="9788026112259",
url="https://www.scopus.com/pages/publications/85216517099"
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[nazev_en] => Various Applications of the Digital Image Correlation Method in the Experimental Analysis of Biomechanical Problems
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[nazev] => Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests
[nazev_orig] => Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests
[duvernost_udaju_id] => S
[popis] => The visual inspection method is a widely used non-contact technique for measuring fatigue crack propagation, but it is inefficient, requiring frequent operator input. Digital image correlation (DIC) methods provide alternatives. However, full-field methods are computationally demanding, while line-based thresholding techniques are sensitive to material load conditions, reducing consistency. This study proposes and validates a new non-contact, physically-based method for real-time crack length evaluation. It eliminates the need for thresholding and enables higher testing frequencies due to its line-based nature, supporting accurate, versatile, and automated fatigue testing. The method integrates the inflection point principle with DIC and machine learning. Visual inspection serves as a validation baseline, using a novel setup that applies both methods simultaneously on the same side of the sample for direct comparison. The proposed method shows good agreement with baseline results, achieving mean absolute errors of 24 mu m (static) and 54 mu m (dynamic). Compared to line-based thresholding, it is four times more accurate (dynamic) and independent of load levels, though 1.7 times slower.
[popis_orig] => The visual inspection method is a widely used non-contact technique for measuring fatigue crack propagation, but it is inefficient, requiring frequent operator input. Digital image correlation (DIC) methods provide alternatives. However, full-field methods are computationally demanding, while line-based thresholding techniques are sensitive to material load conditions, reducing consistency. This study proposes and validates a new non-contact, physically-based method for real-time crack length evaluation. It eliminates the need for thresholding and enables higher testing frequencies due to its line-based nature, supporting accurate, versatile, and automated fatigue testing. The method integrates the inflection point principle with DIC and machine learning. Visual inspection serves as a validation baseline, using a novel setup that applies both methods simultaneously on the same side of the sample for direct comparison. The proposed method shows good agreement with baseline results, achieving mean absolute errors of 24 mu m (static) and 54 mu m (dynamic). Compared to line-based thresholding, it is four times more accurate (dynamic) and independent of load levels, though 1.7 times slower.
[klicova_slova] => Digital image correlation; Crack length measurement; Inflection point method; Gaussian process regression; Machine learning
[klicova_slova_orig] => Digital image correlation; Crack length measurement; Inflection point method; Gaussian process regression; Machine learning
[url] => https://doi.org/10.1016/j.tafmec.2025.105052
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[citace_text] => ŠČERBA, B.; ADAMEC, T.; POKORNÝ, P.; NÁVRAT, T.; VAJDÁK, M.; NÁHLÍK, L. Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests. THEORETICAL AND APPLIED FRACTURE MECHANICS, 2025, vol. 139, no. June, p. 1-17. ISSN: 0167-8442.
[citace_html] => ŠČERBA, B.; ADAMEC, T.; POKORNÝ, P.; NÁVRAT, T.; VAJDÁK, M.; NÁHLÍK, L. Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests. THEORETICAL AND APPLIED FRACTURE MECHANICS, 2025, vol. 139, no. June, p. 1-17. ISSN: 0167-8442.
[citace_rtf] =>
[citace_bibtex] => @article{BUT198574,
author="Bořek {Ščerba} and Tomáš {Adamec} and Pavel {Pokorný} and Tomáš {Návrat} and Michal {Vajdák} and Luboš {Náhlík}",
title="Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests",
journal="THEORETICAL AND APPLIED FRACTURE MECHANICS",
year="2025",
volume="139",
number="June",
pages="1--17",
doi="10.1016/j.tafmec.2025.105052",
issn="0167-8442",
url="https://doi.org/10.1016/j.tafmec.2025.105052"
}
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[nazev_en] => Inflection point principle combined with digital image correlation and machine learning for crack length measurement in fatigue tests
[popis_en] => The visual inspection method is a widely used non-contact technique for measuring fatigue crack propagation, but it is inefficient, requiring frequent operator input. Digital image correlation (DIC) methods provide alternatives. However, full-field methods are computationally demanding, while line-based thresholding techniques are sensitive to material load conditions, reducing consistency. This study proposes and validates a new non-contact, physically-based method for real-time crack length evaluation. It eliminates the need for thresholding and enables higher testing frequencies due to its line-based nature, supporting accurate, versatile, and automated fatigue testing. The method integrates the inflection point principle with DIC and machine learning. Visual inspection serves as a validation baseline, using a novel setup that applies both methods simultaneously on the same side of the sample for direct comparison. The proposed method shows good agreement with baseline results, achieving mean absolute errors of 24 mu m (static) and 54 mu m (dynamic). Compared to line-based thresholding, it is four times more accurate (dynamic) and independent of load levels, though 1.7 times slower.
[klicova_slova_en] => Digital image correlation; Crack length measurement; Inflection point method; Gaussian process regression; Machine learning
[vysledek_datum] => 2025-06-18T00:00:00+02:00
)
[6] => Array
(
[vysledek_id] => 198581
[vysledek_druh_id] => SW
[ex_vysledek_id] => 40173
[vysledek_rok] => 2025
[nazev] => CleftMeter
[nazev_orig] => CleftMeter
[duvernost_udaju_id] => S
[popis] => CleftMeter is a specialized software tool designed for precise anthropometric analysis of 3D models, with a primary focus on maxillary arches in infants with cleft lip and palate. The application allows users to load a 3D model in the standard STL format, accurately place a series of predefined or custom anatomical landmarks, and automatically calculate distances and angles between them.
The software provides a streamlined workflow for researchers and clinicians, enabling consistent and repeatable measurements for clinical assessment, treatment planning, and research studies.
[popis_orig] => CleftMeter is a specialized software tool designed for precise anthropometric analysis of 3D models, with a primary focus on maxillary arches in infants with cleft lip and palate. The application allows users to load a 3D model in the standard STL format, accurately place a series of predefined or custom anatomical landmarks, and automatically calculate distances and angles between them.
The software provides a streamlined workflow for researchers and clinicians, enabling consistent and repeatable measurements for clinical assessment, treatment planning, and research studies.
[klicova_slova] => 3D scanner; STL; Cleft; Seckel Points; Measurements
[klicova_slova_orig] => 3D scanner; STL; Cleft; Seckel Points; Measurements
[url] => https://github.com/ismmb-bio/CleftMeter
[oecd_obor_id] => 20601
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2025-09-02
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] => 172222
[posledni_diagnostika] =>
[vycet_osob] => BORÁK, L.; MARCIÁN, P.; KOŠKOVÁ, O.
[pocet_tvurcu] => 3
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[zverejneno] => 1
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[znamka] =>
[kategorie_nazev] => Applied results
[druh_nazev] => Software
[druh_popis] => Software
[stav] => Approved
[vysledek_kategorie_id] => AV
[vysledek_system_kategorie_id] => PD
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
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[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
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[identifikator_popis] =>
[riv_dodavka_id] => 3603
[riv_dodavka_oznaceni] => RIV26-MZ0-26210___
[riv_dodavka_rok] => 2026
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => BORÁK, L.; MARCIÁN, P.; KOŠKOVÁ, O.: CleftMeter. URL: https://github.com/ismmb-bio/CleftMeter. (Software)
[citace_html] => BORÁK, L.; MARCIÁN, P.; KOŠKOVÁ, O.: CleftMeter. URL: https://github.com/ismmb-bio/CleftMeter. (Software)
[citace_rtf] =>
[citace_bibtex] => @misc{BUT198581,
author="Libor {Borák} and Petr {Marcián} and Olga {Košková}",
title="CleftMeter",
year="2025",
url="https://github.com/ismmb-bio/CleftMeter",
note="Software"
}
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[oecd_tree_oblast_nazev] => 2. Engineering and Technology
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[oecd_tree_obor_nazev] => 2.6 Medical engineering
[oecd_tree_podobor_id] => 20601
[oecd_tree_podobor_nazev] => Medical engineering
[poznamka_metriky] =>
[nazev_en] => CleftMeter
[popis_en] => CleftMeter is a specialized software tool designed for precise anthropometric analysis of 3D models, with a primary focus on maxillary arches in infants with cleft lip and palate. The application allows users to load a 3D model in the standard STL format, accurately place a series of predefined or custom anatomical landmarks, and automatically calculate distances and angles between them.
The software provides a streamlined workflow for researchers and clinicians, enabling consistent and repeatable measurements for clinical assessment, treatment planning, and research studies.
[klicova_slova_en] => 3D scanner; STL; Cleft; Seckel Points; Measurements
[vysledek_datum] => 2025-08-30T00:00:00+02:00
)
[7] => Array
(
[vysledek_id] => 198618
[vysledek_druh_id] => ARTWOS
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[vysledek_rok] => 2025
[nazev] => Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement
[nazev_orig] => Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement
[duvernost_udaju_id] => S
[popis] => BackgroundThe use of Trevira tubes is beneficial for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement, enhancing joint stability, mobility, and reducing abductor insufficiency. The purpose of the study is to describe the surgical technique and outcomes of soft tissue reconstruction using a Trevira tube following proximal femur resection for malignant bone tumors.MethodsThis study evaluates the outcomes of 80 patients who underwent proximal femur tumor replacement using dual-mobility hip systems with Trevira tubes in a sarcoma center. Reconstruction revision-free survival rate and failure modes were assessed using the Henderson classification, while functional outcomes were evaluated in 51 patients with a minimum six-month follow-up, assessed using the Harris Hip Score(HHS), Mayo Hip Score(MHS), Musculoskeletal Tumor Society Score(MSTS), Trendelenburg sign, and range of motion.ResultsThe five-year revision-free survival rate was 85.3%. The cumulative incidences at the five-year mark were 6.5% for dislocation and 8.1% for deep infection. Failures occurred predominantly in the early postoperative period (3 +/- 2.4 months). Functional outcomes (HHS: 78.71 +/- 12.55, MHS: 75.68 +/- 13.37 and MSTS: 24.11 +/- 3.22) were generally satisfactory, despite the frequent occurrence of abductor muscle insufficiency (37.3%). Statistically significant predictors of survival or functional outcomes were not identified. Nevertheless, trends indicate that patients with pathological fractures and metastases tend to have less favorable outcomes.ConclusionTrevira tube for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement demonstrated promising results, with low failure rates and favorable functional outcomes. While no statistically significant predictors of survival or functional outcomes were identified, trends suggested poorer outcomes in patients with pathological fractures or metastatic bone disease.
[popis_orig] => BackgroundThe use of Trevira tubes is beneficial for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement, enhancing joint stability, mobility, and reducing abductor insufficiency. The purpose of the study is to describe the surgical technique and outcomes of soft tissue reconstruction using a Trevira tube following proximal femur resection for malignant bone tumors.MethodsThis study evaluates the outcomes of 80 patients who underwent proximal femur tumor replacement using dual-mobility hip systems with Trevira tubes in a sarcoma center. Reconstruction revision-free survival rate and failure modes were assessed using the Henderson classification, while functional outcomes were evaluated in 51 patients with a minimum six-month follow-up, assessed using the Harris Hip Score(HHS), Mayo Hip Score(MHS), Musculoskeletal Tumor Society Score(MSTS), Trendelenburg sign, and range of motion.ResultsThe five-year revision-free survival rate was 85.3%. The cumulative incidences at the five-year mark were 6.5% for dislocation and 8.1% for deep infection. Failures occurred predominantly in the early postoperative period (3 +/- 2.4 months). Functional outcomes (HHS: 78.71 +/- 12.55, MHS: 75.68 +/- 13.37 and MSTS: 24.11 +/- 3.22) were generally satisfactory, despite the frequent occurrence of abductor muscle insufficiency (37.3%). Statistically significant predictors of survival or functional outcomes were not identified. Nevertheless, trends indicate that patients with pathological fractures and metastases tend to have less favorable outcomes.ConclusionTrevira tube for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement demonstrated promising results, with low failure rates and favorable functional outcomes. While no statistically significant predictors of survival or functional outcomes were identified, trends suggested poorer outcomes in patients with pathological fractures or metastatic bone disease.
[klicova_slova] => Trevira tube; Bone tumors; Proximal femur; Tumorous endoprosthesis megaendoprosthesis; Proximal femur replacement; Bipolar cup
[klicova_slova_orig] => Trevira tube; Bone tumors; Proximal femur; Tumorous endoprosthesis megaendoprosthesis; Proximal femur replacement; Bipolar cup
[url] => https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-025-08948-7
[oecd_obor_id] => 30211
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2025-09-09
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => APOSTOLOPOULOS, V.; MAHDAL, M.; PAZOUREK, L.; BRANČÍK, P.; KUBÍČEK, M.; TRIKOUPIS, I.; GAVRIIL, P.; BOHÁČ, P.; PAPAGELOPOULOS, P.; TOMÁŠ, T.
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[kod_doi] => 10.1186/s12891-025-08948-7
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[zverejneno] => 1
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[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
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[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
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[ins_ts] => 2025-09-22
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[citace_text] => APOSTOLOPOULOS, V.; MAHDAL, M.; PAZOUREK, L.; BRANČÍK, P.; KUBÍČEK, M.; TRIKOUPIS, I.; GAVRIIL, P.; BOHÁČ, P.; PAPAGELOPOULOS, P.; TOMÁŠ, T. Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement. BMC musculoskeletal disorders, 2025, vol. 26, no. 706, p. 1-9. ISSN: 1471-2474.
[citace_html] => APOSTOLOPOULOS, V.; MAHDAL, M.; PAZOUREK, L.; BRANČÍK, P.; KUBÍČEK, M.; TRIKOUPIS, I.; GAVRIIL, P.; BOHÁČ, P.; PAPAGELOPOULOS, P.; TOMÁŠ, T. Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement. BMC musculoskeletal disorders, 2025, vol. 26, no. 706, p. 1-9. ISSN: 1471-2474.
[citace_rtf] =>
[citace_bibtex] => @article{BUT198618,
author="Vasileios {Apostolopoulos} and Michal {Mahdal} and Lukáš {Pazourek} and Pavel {Brančík} and Marián {Kubíček} and Ioannis {Trikoupis} and Panayiotis {Gavriil} and Petr {Boháč} and Panayiotis J. {Papagelopoulos} and Tomáš {Tomáš}",
title="Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement",
journal="BMC musculoskeletal disorders",
year="2025",
volume="26",
number="706",
pages="1--9",
doi="10.1186/s12891-025-08948-7",
url="https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-025-08948-7"
}
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[poznamka_metriky] =>
[nazev_en] => Soft tissue reconstruction using Trevira tube following proximal femur resection and tumorous endoprosthetic replacement
[popis_en] => BackgroundThe use of Trevira tubes is beneficial for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement, enhancing joint stability, mobility, and reducing abductor insufficiency. The purpose of the study is to describe the surgical technique and outcomes of soft tissue reconstruction using a Trevira tube following proximal femur resection for malignant bone tumors.MethodsThis study evaluates the outcomes of 80 patients who underwent proximal femur tumor replacement using dual-mobility hip systems with Trevira tubes in a sarcoma center. Reconstruction revision-free survival rate and failure modes were assessed using the Henderson classification, while functional outcomes were evaluated in 51 patients with a minimum six-month follow-up, assessed using the Harris Hip Score(HHS), Mayo Hip Score(MHS), Musculoskeletal Tumor Society Score(MSTS), Trendelenburg sign, and range of motion.ResultsThe five-year revision-free survival rate was 85.3%. The cumulative incidences at the five-year mark were 6.5% for dislocation and 8.1% for deep infection. Failures occurred predominantly in the early postoperative period (3 +/- 2.4 months). Functional outcomes (HHS: 78.71 +/- 12.55, MHS: 75.68 +/- 13.37 and MSTS: 24.11 +/- 3.22) were generally satisfactory, despite the frequent occurrence of abductor muscle insufficiency (37.3%). Statistically significant predictors of survival or functional outcomes were not identified. Nevertheless, trends indicate that patients with pathological fractures and metastases tend to have less favorable outcomes.ConclusionTrevira tube for soft tissue reconstruction following proximal femur resection and endoprosthetic replacement demonstrated promising results, with low failure rates and favorable functional outcomes. While no statistically significant predictors of survival or functional outcomes were identified, trends suggested poorer outcomes in patients with pathological fractures or metastatic bone disease.
[klicova_slova_en] => Trevira tube; Bone tumors; Proximal femur; Tumorous endoprosthesis megaendoprosthesis; Proximal femur replacement; Bipolar cup
[vysledek_datum] => 2025-07-25T00:00:00+02:00
)
[8] => Array
(
[vysledek_id] => 198653
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[nazev] => Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation
[nazev_orig] => Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation
[duvernost_udaju_id] => S
[popis] => This paper presents an experimental investigation of the dynamic response of a high-speed rotor system supported by aerodynamic tilting pad journal bearings subjected to base excitation. The study focuses on the influence of various operating conditions, including different rotational speeds and base excitation frequencies, on the dynamic response of the system. The base excitation was applied using a controlled shaker excitation, and the system response was measured using non-contact displacement sensors. The results highlight critical speed dependencies, amplitude variations, and damping characteristics under different conditions. These findings provide insight into the dynamic performance of rotor systems operating in low-viscosity environments and serve as a basis for future model validation and optimization.
[popis_orig] => This paper presents an experimental investigation of the dynamic response of a high-speed rotor system supported by aerodynamic tilting pad journal bearings subjected to base excitation. The study focuses on the influence of various operating conditions, including different rotational speeds and base excitation frequencies, on the dynamic response of the system. The base excitation was applied using a controlled shaker excitation, and the system response was measured using non-contact displacement sensors. The results highlight critical speed dependencies, amplitude variations, and damping characteristics under different conditions. These findings provide insight into the dynamic performance of rotor systems operating in low-viscosity environments and serve as a basis for future model validation and optimization.
[klicova_slova] => rotor dynamics, base excitation, tilting pad bearings, low viscosity
[klicova_slova_orig] => rotor dynamics, base excitation, tilting pad bearings, low viscosity
[url] =>
[oecd_obor_id] => 20302
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
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[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2026-02-08
[vykazovat_riv] => 0
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
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[vycet_osob] => CABAJ, G.; NÁVRAT, T.; HOUFEK, L.; POKORNÝ, J.; VAJDÁK, M.
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[citace_text] => CABAJ, G.; NÁVRAT, T.; HOUFEK, L.; POKORNÝ, J.; VAJDÁK, M. Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation.
[citace_html] => CABAJ, G.; NÁVRAT, T.; HOUFEK, L.; POKORNÝ, J.; VAJDÁK, M. Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation.
[citace_rtf] =>
[citace_bibtex] => @misc{BUT198653,
author="Gabriel {Cabaj} and Tomáš {Návrat} and Lubomír {Houfek} and Jan {Pokorný} and Michal {Vajdák}",
title="Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation",
note="Abstract"
}
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[poznamka_metriky] =>
[nazev_en] => Experimental study of a High-speed rotor supported by aerodynamic bearings under base excitation
[popis_en] => This paper presents an experimental investigation of the dynamic response of a high-speed rotor system supported by aerodynamic tilting pad journal bearings subjected to base excitation. The study focuses on the influence of various operating conditions, including different rotational speeds and base excitation frequencies, on the dynamic response of the system. The base excitation was applied using a controlled shaker excitation, and the system response was measured using non-contact displacement sensors. The results highlight critical speed dependencies, amplitude variations, and damping characteristics under different conditions. These findings provide insight into the dynamic performance of rotor systems operating in low-viscosity environments and serve as a basis for future model validation and optimization.
[klicova_slova_en] => rotor dynamics, base excitation, tilting pad bearings, low viscosity
)
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(
[vysledek_id] => 198800
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[nazev] => Application of machine learning for predicting hydrogen-assisted fatigue crack growth
[nazev_orig] => Application of machine learning for predicting hydrogen-assisted fatigue crack growth
[duvernost_udaju_id] => S
[popis] => Hydrogen is one of the key drivers for the transition to a zero-carbon future, however, it accelerates the degradation of pipelines by a process known as hydrogen embrittlement. Predictive models can offer significant advantages in terms of cost, time, and flexibility compared to experiments. Artificial neural network and random forest models are developed to predict hydrogen-assisted fatigue in three API 5L steels: X52, X70, and X100. The models utilize critical variables such as hydrogen pressure and stress intensity factor, obtained from experiments, as inputs to model their relationship with hydrogen-assisted fatigue crack growth. The efficacy of the models is validated, tested, and compared with experiments as well as phenomenological models. The outcome of the study reveals that machine learning, particularly artificial neural networks, can learn and subsequently predict the hydrogen-assisted fatigue in pipeline steels with good accuracy, including data (e.g., hydrogen pressures) that lies outside of the training dataset.
[popis_orig] => Hydrogen is one of the key drivers for the transition to a zero-carbon future, however, it accelerates the degradation of pipelines by a process known as hydrogen embrittlement. Predictive models can offer significant advantages in terms of cost, time, and flexibility compared to experiments. Artificial neural network and random forest models are developed to predict hydrogen-assisted fatigue in three API 5L steels: X52, X70, and X100. The models utilize critical variables such as hydrogen pressure and stress intensity factor, obtained from experiments, as inputs to model their relationship with hydrogen-assisted fatigue crack growth. The efficacy of the models is validated, tested, and compared with experiments as well as phenomenological models. The outcome of the study reveals that machine learning, particularly artificial neural networks, can learn and subsequently predict the hydrogen-assisted fatigue in pipeline steels with good accuracy, including data (e.g., hydrogen pressures) that lies outside of the training dataset.
[klicova_slova] => Hydrogen embrittlement; Artificial neural network; Fatigue; Machine learning; Supercomputing
[klicova_slova_orig] => Hydrogen embrittlement; Artificial neural network; Fatigue; Machine learning; Supercomputing
[url] => https://www.sciencedirect.com/science/article/pii/S0927025625005506
[oecd_obor_id] => 20500
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[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
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[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
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[schvaleno] => 2025-09-18
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[vycet_osob] => ADUWENYE, P.; ŠEBEK, F.; YEDDU, H.
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[kod_doi] => 10.1016/j.commatsci.2025.114207
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[stav] => Approved
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[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 0927-0256
[identifikator_popis] => ISSN - COMPUTATIONAL MATERIALS SCIENCE (NL)
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[citace_text] => ADUWENYE, P.; ŠEBEK, F.; YEDDU, H. Application of machine learning for predicting hydrogen-assisted fatigue crack growth. COMPUTATIONAL MATERIALS SCIENCE, 2025, vol. 260, no. 10, 12 p. ISSN: 0927-0256.
[citace_html] => ADUWENYE, P.; ŠEBEK, F.; YEDDU, H. Application of machine learning for predicting hydrogen-assisted fatigue crack growth. COMPUTATIONAL MATERIALS SCIENCE, 2025, vol. 260, no. 10, 12 p. ISSN: 0927-0256.
[citace_rtf] =>
[citace_bibtex] => @article{BUT198800,
author="Presley Tosan {Aduwenye} and František {Šebek} and Hemantha Kumar {Yeddu}",
title="Application of machine learning for predicting hydrogen-assisted fatigue crack growth",
journal="COMPUTATIONAL MATERIALS SCIENCE",
year="2025",
volume="260",
number="10",
pages="12",
doi="10.1016/j.commatsci.2025.114207",
issn="0927-0256",
url="https://www.sciencedirect.com/science/article/pii/S0927025625005506"
}
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[nazev_en] => Application of machine learning for predicting hydrogen-assisted fatigue crack growth
[popis_en] => Hydrogen is one of the key drivers for the transition to a zero-carbon future, however, it accelerates the degradation of pipelines by a process known as hydrogen embrittlement. Predictive models can offer significant advantages in terms of cost, time, and flexibility compared to experiments. Artificial neural network and random forest models are developed to predict hydrogen-assisted fatigue in three API 5L steels: X52, X70, and X100. The models utilize critical variables such as hydrogen pressure and stress intensity factor, obtained from experiments, as inputs to model their relationship with hydrogen-assisted fatigue crack growth. The efficacy of the models is validated, tested, and compared with experiments as well as phenomenological models. The outcome of the study reveals that machine learning, particularly artificial neural networks, can learn and subsequently predict the hydrogen-assisted fatigue in pipeline steels with good accuracy, including data (e.g., hydrogen pressures) that lies outside of the training dataset.
[klicova_slova_en] => Hydrogen embrittlement; Artificial neural network; Fatigue; Machine learning; Supercomputing
[vysledek_datum] => 2025-08-29T00:00:00+02:00
)
[10] => Array
(
[vysledek_id] => 198893
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[nazev] => Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial
[nazev_orig] => Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial
[duvernost_udaju_id] => S
[popis] => BackgroundOrofacial clefts are common congenital malformations, affecting both facial aesthetics and function. Intubation in newborns with cleft lip and palate is challenging and carries a high risk of oral tissue damage. This study investigates the use of a customized protective palatal obturator (CPPO) to improve intubation safety and reduce tissue injury during cleft lip surgery.MethodsA single-center, randomized neonatal sub-study was conducted, including 55 newborns who underwent cleft lip surgery. Patients were randomized into an intervention group (CPPO use) and a control group (standard intubation without CPPO). The primary aim was to evaluate the degree of oral tissue injury during intubation, its severity, and location, in both groups, secondary aims included laryngoscopy image during intubation (modified Cormack-Lehane scoring system), intubation time, and attempts, number of intubations attempts and anesthesiologic complication during intubation. This study was registered on www.clinicaltrials.gov (ClinicalTrials.gov Identifier: NCT04422847 and NCT04422964).ResultsNo tissue damage occurred in the CPPO group, while the control group had a 21.4% incidence of tissue injury (p = .023). Secondary outcomes showed no statistically significant differences between groups for intubation time or the number of intubation attempts. Difficult intubation was less frequent in the CPPO group (40.7%) compared to the control group (50%), though this difference was not statistically significant.ConclusionThe CPPO significantly reduces the risk of tissue damage during intubation in newborns undergoing cleft lip surgery, without increasing intubation time or attempts. It is particularly beneficial for severe clefts, and its use may facilitate safer airway management in these high-risk patients.
[popis_orig] => BackgroundOrofacial clefts are common congenital malformations, affecting both facial aesthetics and function. Intubation in newborns with cleft lip and palate is challenging and carries a high risk of oral tissue damage. This study investigates the use of a customized protective palatal obturator (CPPO) to improve intubation safety and reduce tissue injury during cleft lip surgery.MethodsA single-center, randomized neonatal sub-study was conducted, including 55 newborns who underwent cleft lip surgery. Patients were randomized into an intervention group (CPPO use) and a control group (standard intubation without CPPO). The primary aim was to evaluate the degree of oral tissue injury during intubation, its severity, and location, in both groups, secondary aims included laryngoscopy image during intubation (modified Cormack-Lehane scoring system), intubation time, and attempts, number of intubations attempts and anesthesiologic complication during intubation. This study was registered on www.clinicaltrials.gov (ClinicalTrials.gov Identifier: NCT04422847 and NCT04422964).ResultsNo tissue damage occurred in the CPPO group, while the control group had a 21.4% incidence of tissue injury (p = .023). Secondary outcomes showed no statistically significant differences between groups for intubation time or the number of intubation attempts. Difficult intubation was less frequent in the CPPO group (40.7%) compared to the control group (50%), though this difference was not statistically significant.ConclusionThe CPPO significantly reduces the risk of tissue damage during intubation in newborns undergoing cleft lip surgery, without increasing intubation time or attempts. It is particularly beneficial for severe clefts, and its use may facilitate safer airway management in these high-risk patients.
[klicova_slova] => Cleft lip, newborns, protective obturator, 3D printing, intubation, tissue damage, anesthesia management, patient specific approach
[klicova_slova_orig] => Cleft lip, newborns, protective obturator, 3D printing, intubation, tissue damage, anesthesia management, patient specific approach
[url] => https://www.tandfonline.com/doi/full/10.1080/07853890.2025.2561802
[oecd_obor_id] => 30218
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
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[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
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[schvaleno] => 2025-10-07
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[slozka_id] => 174590
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[vycet_osob] => RICHTROVA, M.; KOSKOVA, O.; MARCIÁN, P.; BORÁK, L.; BONISCHOVA, T.; FABIAN, D.; JANKU, M.; JOUKAL, M.; VYMAZALOVA, K.; STOURAC, P.
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[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Marcián Petr
[upravil] => Kalmárová Kristýna
[ins_uid] => 53543
[upd_uid] => 254501
[ins_ts] => 2025-10-01
[upd_ts] => 2026-02-24
[status] => 9
[identifikator] => ISSN 0785-3890
[identifikator_popis] => ISSN - ANNALS OF MEDICINE (SE)
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[citace_text] => RICHTROVA, M.; KOSKOVA, O.; MARCIÁN, P.; BORÁK, L.; BONISCHOVA, T.; FABIAN, D.; JANKU, M.; JOUKAL, M.; VYMAZALOVA, K.; STOURAC, P. Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial. ANNALS OF MEDICINE, 2025, vol. 57, no. 1, 11 p.
[citace_html] => RICHTROVA, M.; KOSKOVA, O.; MARCIÁN, P.; BORÁK, L.; BONISCHOVA, T.; FABIAN, D.; JANKU, M.; JOUKAL, M.; VYMAZALOVA, K.; STOURAC, P. Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial. ANNALS OF MEDICINE, 2025, vol. 57, no. 1, 11 p.
[citace_rtf] =>
[citace_bibtex] => @article{BUT198893,
author="{} and {} and {} and Petr {Marcián} and {} and Libor {Borák} and {} and {} and {} and {} and {} and {}",
title="Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial",
journal="ANNALS OF MEDICINE",
year="2025",
volume="57",
number="1",
pages="11",
doi="10.1080/07853890.2025.2561802",
issn="0785-3890",
url="https://www.tandfonline.com/doi/full/10.1080/07853890.2025.2561802"
}
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[nazev_en] => Customized protective palatal obturator for intubation in newborns in cleft lip surgery: a randomized controlled trial
[popis_en] => BackgroundOrofacial clefts are common congenital malformations, affecting both facial aesthetics and function. Intubation in newborns with cleft lip and palate is challenging and carries a high risk of oral tissue damage. This study investigates the use of a customized protective palatal obturator (CPPO) to improve intubation safety and reduce tissue injury during cleft lip surgery.MethodsA single-center, randomized neonatal sub-study was conducted, including 55 newborns who underwent cleft lip surgery. Patients were randomized into an intervention group (CPPO use) and a control group (standard intubation without CPPO). The primary aim was to evaluate the degree of oral tissue injury during intubation, its severity, and location, in both groups, secondary aims included laryngoscopy image during intubation (modified Cormack-Lehane scoring system), intubation time, and attempts, number of intubations attempts and anesthesiologic complication during intubation. This study was registered on www.clinicaltrials.gov (ClinicalTrials.gov Identifier: NCT04422847 and NCT04422964).ResultsNo tissue damage occurred in the CPPO group, while the control group had a 21.4% incidence of tissue injury (p = .023). Secondary outcomes showed no statistically significant differences between groups for intubation time or the number of intubation attempts. Difficult intubation was less frequent in the CPPO group (40.7%) compared to the control group (50%), though this difference was not statistically significant.ConclusionThe CPPO significantly reduces the risk of tissue damage during intubation in newborns undergoing cleft lip surgery, without increasing intubation time or attempts. It is particularly beneficial for severe clefts, and its use may facilitate safer airway management in these high-risk patients.
[klicova_slova_en] => Cleft lip, newborns, protective obturator, 3D printing, intubation, tissue damage, anesthesia management, patient specific approach
[vysledek_datum] => 2025-09-22T00:00:00+02:00
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[nazev] => Novel Sweeping Methods for Robotic Rearrangement of Object Piles
[nazev_orig] => Novel Sweeping Methods for Robotic Rearrangement of Object Piles
[duvernost_udaju_id] => S
[popis] => In this paper, we investigate robotic pile rearrangement algorithms to redistribute objects in cluttered scenes for improving the performance of object recognition and picking systems. In particular, we focus on identifying the best pile sweeping actions in fast-paced industrial sorting applications where the robot would only have limited time to react, i.e., has one chance to sweep. The robot's sweep aims to minimize occlusions and improve visibility of the objects in the scene. We first study the performance of three methods that utilize dimensionality reduction techniques (i.e., clustering and PCA) as baselines, discussing their strengths and weaknesses. We then present a novel sampling-based approach for determining the best start and end points for the sweeping motions based on an action evaluation metric. Additionally, we adapted the best performing method to prioritize minimizing occlusion for specific objects. Our results show that the sampling-based method performs more consistently and successfully across different initial pile configurations.
[popis_orig] => In this paper, we investigate robotic pile rearrangement algorithms to redistribute objects in cluttered scenes for improving the performance of object recognition and picking systems. In particular, we focus on identifying the best pile sweeping actions in fast-paced industrial sorting applications where the robot would only have limited time to react, i.e., has one chance to sweep. The robot's sweep aims to minimize occlusions and improve visibility of the objects in the scene. We first study the performance of three methods that utilize dimensionality reduction techniques (i.e., clustering and PCA) as baselines, discussing their strengths and weaknesses. We then present a novel sampling-based approach for determining the best start and end points for the sweeping motions based on an action evaluation metric. Additionally, we adapted the best performing method to prioritize minimizing occlusion for specific objects. Our results show that the sampling-based method performs more consistently and successfully across different initial pile configurations.
[klicova_slova] => Intelligent robots; Manipulation Planning; Industrial and Service Robotics; Environment Monitoring and Management; Cluttered scenes; Dimensionality reduction techniques; Object recognition systems;
[klicova_slova_orig] => Intelligent robots; Manipulation Planning; Industrial and Service Robotics; Environment Monitoring and Management; Cluttered scenes; Dimensionality reduction techniques; Object recognition systems;
[url] =>
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[vlozil] => Radil Filip
[upravil] => Grepl Robert
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[ins_ts] => 2025-11-20
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[identifikator] => ISBN 9798331522469 ISSN 2161-8070
[identifikator_popis] => ISBN - IEEE International Conference on Automation Science and Engineering ISSN - IEEE International Conference on Automation Science and Engineering (CASE) (US)
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[citace_text] => RATHI, A.; RADIL, F.; PAWAR, H.; CALLI, B. Novel Sweeping Methods for Robotic Rearrangement of Object Piles. In IEEE International Conference on Automation Science and Engineering. IEEE International Conference on Automation Science and Engineering (CASE). IEEE Computer Society, 2025. p. 1788-1795. ISBN: 9798331522469.
[citace_html] => RATHI, A.; RADIL, F.; PAWAR, H.; CALLI, B. Novel Sweeping Methods for Robotic Rearrangement of Object Piles. In IEEE International Conference on Automation Science and Engineering. IEEE International Conference on Automation Science and Engineering (CASE). IEEE Computer Society, 2025. p. 1788-1795. ISBN: 9798331522469.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT199512,
author="{} and {} and Filip {Radil} and {} and {}",
title="Novel Sweeping Methods for Robotic Rearrangement of Object Piles",
booktitle="IEEE International Conference on Automation Science and Engineering",
year="2025",
journal="IEEE International Conference on Automation Science and Engineering (CASE)",
pages="1788--1795",
publisher="IEEE Computer Society",
doi="10.1109/CASE58245.2025.11163961",
isbn="9798331522469",
issn="2161-8070"
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[nazev_en] => Novel Sweeping Methods for Robotic Rearrangement of Object Piles
[popis_en] => In this paper, we investigate robotic pile rearrangement algorithms to redistribute objects in cluttered scenes for improving the performance of object recognition and picking systems. In particular, we focus on identifying the best pile sweeping actions in fast-paced industrial sorting applications where the robot would only have limited time to react, i.e., has one chance to sweep. The robot's sweep aims to minimize occlusions and improve visibility of the objects in the scene. We first study the performance of three methods that utilize dimensionality reduction techniques (i.e., clustering and PCA) as baselines, discussing their strengths and weaknesses. We then present a novel sampling-based approach for determining the best start and end points for the sweeping motions based on an action evaluation metric. Additionally, we adapted the best performing method to prioritize minimizing occlusion for specific objects. Our results show that the sampling-based method performs more consistently and successfully across different initial pile configurations.
[klicova_slova_en] => Intelligent robots; Manipulation Planning; Industrial and Service Robotics; Environment Monitoring and Management; Cluttered scenes; Dimensionality reduction techniques; Object recognition systems;
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[nazev] => Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation
[nazev_orig] => Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation
[duvernost_udaju_id] => S
[popis] => Background The hole-drilling method, widely used to evaluate near-surface residual stresses, typically relies on strain gauge rosettes to measure surface deformations resulting from stress relaxation. However, this approach has several limitations, including a small number of discrete measurement points, the need for careful surface preparation, and sensitivity to misalignment between the rosette and the drilled hole. Objective To address these issues, the use of Digital Image Correlation (DIC), a full-field optical measurement technique, was investigated as a replacement for the strain gauge rosette within the hole-drilling method. Methods DIC was employed to measure strain and displacement fields around drilled holes in steel specimens subjected to various load levels, aiming to identify the minimum stress that could be accurately resolved. Several adjustments were made to both the hardware configuration and data processing procedures within the DIC setup to improve the accuracy of measured deformation. Results Accurate stress evaluation was achieved even at low stress levels, on the order of a few MPa, despite the relatively small strain magnitudes compared to the noise level. Conclusions The results obtained demonstrate that integrating DIC with the hole-drilling method offers a promising and effective alternative to traditional strain gauge-based residual stress measurement.
[popis_orig] => Background The hole-drilling method, widely used to evaluate near-surface residual stresses, typically relies on strain gauge rosettes to measure surface deformations resulting from stress relaxation. However, this approach has several limitations, including a small number of discrete measurement points, the need for careful surface preparation, and sensitivity to misalignment between the rosette and the drilled hole. Objective To address these issues, the use of Digital Image Correlation (DIC), a full-field optical measurement technique, was investigated as a replacement for the strain gauge rosette within the hole-drilling method. Methods DIC was employed to measure strain and displacement fields around drilled holes in steel specimens subjected to various load levels, aiming to identify the minimum stress that could be accurately resolved. Several adjustments were made to both the hardware configuration and data processing procedures within the DIC setup to improve the accuracy of measured deformation. Results Accurate stress evaluation was achieved even at low stress levels, on the order of a few MPa, despite the relatively small strain magnitudes compared to the noise level. Conclusions The results obtained demonstrate that integrating DIC with the hole-drilling method offers a promising and effective alternative to traditional strain gauge-based residual stress measurement.
[klicova_slova] => Hole-drilling method, Residual stress, Digital image correlation, Full-field measurement
[klicova_slova_orig] => Hole-drilling method, Residual stress, Digital image correlation, Full-field measurement
[url] => https://link.springer.com/article/10.1007/s11340-025-01226-6
[oecd_obor_id] => 20500
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[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
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[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2025-12-03
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[slozka_id] => 184466
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[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
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[vlozil] => Halabuk Dávid
[upravil] => Skůpa Jan
[ins_uid] => 145038
[upd_uid] => 51108
[ins_ts] => 2025-11-27
[upd_ts] => 2026-02-04
[status] => 9
[identifikator] => ISSN 0014-4851
[identifikator_popis] => ISSN - Experimental Mechanics (US)
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[citace_text] => HALABUK, D.; VAJDAK, M.; NÁVRAT, T. Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation. Experimental Mechanics, 2025, vol. 65, no. 9, p. 1427-1441.
[citace_html] => HALABUK, D.; VAJDAK, M.; NÁVRAT, T. Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation. Experimental Mechanics, 2025, vol. 65, no. 9, p. 1427-1441.
[citace_rtf] =>
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author="Dávid {Halabuk} and {} and Tomáš {Návrat}",
title="Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation",
journal="Experimental Mechanics",
year="2025",
volume="65",
number="9",
pages="1427--1441",
doi="10.1007/s11340-025-01226-6",
issn="0014-4851",
url="https://link.springer.com/article/10.1007/s11340-025-01226-6"
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[nazev_en] => Feasibility Study of Uniform Residual Stress Measurement Using the Hole-Drilling Method and Digital Image Correlation
[popis_en] => Background The hole-drilling method, widely used to evaluate near-surface residual stresses, typically relies on strain gauge rosettes to measure surface deformations resulting from stress relaxation. However, this approach has several limitations, including a small number of discrete measurement points, the need for careful surface preparation, and sensitivity to misalignment between the rosette and the drilled hole. Objective To address these issues, the use of Digital Image Correlation (DIC), a full-field optical measurement technique, was investigated as a replacement for the strain gauge rosette within the hole-drilling method. Methods DIC was employed to measure strain and displacement fields around drilled holes in steel specimens subjected to various load levels, aiming to identify the minimum stress that could be accurately resolved. Several adjustments were made to both the hardware configuration and data processing procedures within the DIC setup to improve the accuracy of measured deformation. Results Accurate stress evaluation was achieved even at low stress levels, on the order of a few MPa, despite the relatively small strain magnitudes compared to the noise level. Conclusions The results obtained demonstrate that integrating DIC with the hole-drilling method offers a promising and effective alternative to traditional strain gauge-based residual stress measurement.
[klicova_slova_en] => Hole-drilling method, Residual stress, Digital image correlation, Full-field measurement
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