Computer Methods in Biomechanics and Biomedical Engineering最新文献_第3页

Effects of inlet boundary conditions on blood flow and thrombosis modelling in patients with chronic thromboembolic pulmonary hypertension. 入口边界条件对慢性血栓栓塞性肺动脉高压患者血流和血栓形成模型的影响。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2024-11-20 DOI: 10.1080/10255842.2024.2429789

Hui Wu, Linfeng Xi, Yueming Hao, Min Liu, Qiang Huang, Tianxiang Ma, Xiaoyan Deng, Zhenguo Zhai, Xiao Liu

{"title":"Effects of inlet boundary conditions on blood flow and thrombosis modelling in patients with chronic thromboembolic pulmonary hypertension.","authors":"Hui Wu, Linfeng Xi, Yueming Hao, Min Liu, Qiang Huang, Tianxiang Ma, Xiaoyan Deng, Zhenguo Zhai, Xiao Liu","doi":"10.1080/10255842.2024.2429789","DOIUrl":"10.1080/10255842.2024.2429789","url":null,"abstract":"To investigate the impact of patient-specific boundary conditions (BC) on blood flow and thrombosis modelling for patients with chronic thromboembolic pulmonary hypertension (CTEPH), three types of BCs were utilized to construct CTEPH models based on computed tomography pulmonary angiography images. First BC type is the patient-specific velocity profiles at the main pulmonary artery using phase contrast MRI (PC-MRI). The other two simplified types are the pulsatile BC and steady BC, which are obtained by spatially and temporally averaging the PC-MRI BC. Hemodynamic features including helical density, time-averaged wall shear stress (TAWSS) and oscillatory shear index (OSI), and thrombosis were compared for the three types BCs. The results indicated that, compared to the MRI BC, steady BC overestimated helical density and TAWSS in the pulmonary arteries by approximately 63.1% and 60%, respectively. The impact of simplified pulsatile BC on TAWSS and OSI in most regions of the pulmonary arteries was negligible with differences within 5%. Regarding thrombosis, the area predicted under pulsatile BC was approximately 80% smaller than that under PC-MRI BC. In conclusion, compared to PC-MRI BC, steady inlet BC tend to overestimate hemodynamic parameters, while pulsatile inlet BC yield similar wall shear stress based on parameters in most regions of the pulmonary artery. Patient-specific PC-MRI inlet BC should be used for accurate predictions of helical flow pattern and thrombus formation.","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1214-1224"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142677429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of sacroiliac interosseous ligament tension and laxity on lumbar spine biomechanics under vertical vibration: a finite element study. 垂直振动下骶髂骨间韧带张力和松弛对腰椎生物力学影响的有限元研究。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2024-12-06 DOI: 10.1080/10255842.2024.2437661

ShiHong Yu, ShiFu Zheng, Ying Gao, YiTang Liu, KaiFeng Zhang, RuiChun Dong

{"title":"Impact of sacroiliac interosseous ligament tension and laxity on lumbar spine biomechanics under vertical vibration: a finite element study.","authors":"ShiHong Yu, ShiFu Zheng, Ying Gao, YiTang Liu, KaiFeng Zhang, RuiChun Dong","doi":"10.1080/10255842.2024.2437661","DOIUrl":"10.1080/10255842.2024.2437661","url":null,"abstract":"Objective: To investigate the impact of tension and laxity in the sacroiliac interosseous ligament on lumbar spine displacement and force response in vibration environments.Methods: A finite element model of the lumbar-pelvis, previously crafted and rigorously validated, was used to simulate ligament tension and laxity by adjusting the elastic modulus of the SIL under a sinusoidal vertical load of ±40 N at 5 Hz. Comparisons of lumbar spine horizontal and axial displacements as well as annulus fibrous stress, nucleus pulposus pressure, and facet joint force were performed, respectively.Results: With the elastic modulus of the SIL varying by +50, -50, and -90%, the maximum vibration amplitude changed by +20.00, -175.00, and -627.27% for lumbar horizontal displacement, +30.00, -157.14, and -627.22% for lumbar axial displacements, +5.88, -19.35, and -245.16% for annulus fibrous stress, +10.00, -25.00, and -157.14% for nucleus pulposus pressure, as well as +6.54, -20.13, and -255.37% for facet joint force, respectively.Conclusion: In contrast to static environments, large laxity of the SILs not only diminishes lumbar spine stability in vibrational settings but also significantly amplifies dynamic loads, thereby heightening the risk of lumbar spine vibratory injuries and low back pain disorders.","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1371-1379"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modified mutual information feature selection algorithm to predict COVID-19 using clinical data. 利用临床数据预测 COVID-19 的修正互信息特征选择算法。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2024-11-20 DOI: 10.1080/10255842.2024.2429012

R Ame Rayan, A Suruliandi, S P Raja

引用次数: 0

Reconstruction of anterior talofibular ligament and posterior tibiotalar ligament enhance ankle stability after total talus replacement by finite element analysis. 全距骨置换术后重建距腓骨前韧带和胫距后韧带增强踝关节稳定性。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2025-01-25 DOI: 10.1080/10255842.2025.2456488

Hao Li, Haitao Xie, Shujing Kang, Kuixue Xu, Xiaoyi Huang, Haiqiong Xie, Xu Cai, Wan Chen, Kai Wei

引用次数: 0

Delineation of hub genes related to ferroptosis and radiosensitivity in breast cancer with three identified subtypes. 三种确定的乳腺癌亚型中与铁下垂和放射敏感性相关的枢纽基因的描述。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2024-11-29 DOI: 10.1080/10255842.2024.2433113

Mao Mao, Yichao Zhuang, Haitao Yu

引用次数: 0

In silico study of novel coumarin derivatives as potential agents in the pancreatic cancer treatment. 新型香豆素衍生物作为胰腺癌治疗潜在药物的硅学研究。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2024-11-20 DOI: 10.1080/10255842.2024.2431345

Svetlana Jeremić, Edina Avdović, Zana Dolićanin, Radiša Vojinović, Marko Antonijević, Zoran Marković

引用次数: 0

A multi-branch, multi-scale, and multi-view CNN with lightweight temporal attention mechanism for EEG-based motor imagery decoding. 一种基于脑电图的运动图像解码的多分支、多尺度、多视角、轻量级时间注意机制CNN。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2025-01-06 DOI: 10.1080/10255842.2024.2448576

Lei Zhu, Yunsheng Wang, Aiai Huang, Xufei Tan, Jianhai Zhang

{"title":"A multi-branch, multi-scale, and multi-view CNN with lightweight temporal attention mechanism for EEG-based motor imagery decoding.","authors":"Lei Zhu, Yunsheng Wang, Aiai Huang, Xufei Tan, Jianhai Zhang","doi":"10.1080/10255842.2024.2448576","DOIUrl":"10.1080/10255842.2024.2448576","url":null,"abstract":"Convolutional neural networks (CNNs) have been widely utilized for decoding motor imagery (MI) from electroencephalogram (EEG) signals. However, extracting discriminative spatial-temporal-spectral features from low signal-to-noise ratio EEG signals remains challenging. This paper proposes MBMSNet , a multi-branch, multi-scale, and multi-view CNN with a lightweight temporal attention mechanism for EEG-Based MI decoding. Specifically, MBMSNet first extracts multi-view representations from raw EEG signals, followed by independent branches to capture spatial, spectral, temporal-spatial, and temporal-spectral features. Each branch includes a domain-specific convolutional layer, a variance layer, and a temporal attention layer. Finally, the features derived from each branch are concatenated with weights and classified through a fully connected layer. Experiments demonstrate MBMSNet outperforms state-of-the-art models, achieving accuracies of 84.60% on BCI Competition IV 2a, 87.80% on 2b, and 74.58% on OpenBMI, showcasing its potential for robust BCI applications.","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1507-1521"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation analysis of surgical neck fractures of the humerus related to bone degeneration. 肱骨颈骨折伴骨退变的手术模拟分析。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2025-01-26 DOI: 10.1080/10255842.2025.2456986

Yutao Men, Lele Wei, Yeming Wang, Wei Chen, Fulong Liu, Yucheng Ren

{"title":"Simulation analysis of surgical neck fractures of the humerus related to bone degeneration.","authors":"Yutao Men, Lele Wei, Yeming Wang, Wei Chen, Fulong Liu, Yucheng Ren","doi":"10.1080/10255842.2025.2456986","DOIUrl":"10.1080/10255842.2025.2456986","url":null,"abstract":"The most common type of proximal humerus fracture is surgical neck fracture. The purpose of this paper is to study the mechanical mechanism and the effect of bone degeneration on humeral surgical neck fractures. The right humerus finite element models were established based on CT computed tomography. The stress values and crack propagation process under an axial force were obtained. Three indexes (mechanical property, cortical bone thickness of diaphysis and cancellous bone volume fraction) in this article were used to describe bone degeneration. The results showed that the three models group with different index had the same conclusions. The calculation results showed that the higher the bone degeneration level, the shorter the fracture time and the lower the fracture stress. The crack initiated from the medial side of the humerus, then gradually grew toward lateral side along the both sides, and finally broke. The medial crack was flat and single like \"a thin line\", while the lateral fracture of the humerus was irregular and crushed into fragments. The medial humerus cracks were generated by tensile stress, while the lateral cracks were generated by compressive stress. The thickness of humerus diaphysis might be used as the index of fracture risk due to direct readability from clinical images and quantitative relation of fracture risk. This article would provide reference data for the treatment and prevention of humeral surgical neck fracture.","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1690-1699"},"PeriodicalIF":1.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143047454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel anchor-type proximal femoral nail for the improvement of bone-fixation integrity in treating intertrochanteric fractures: an experimental and computational characterization study. 新型锚定型股骨近端钉用于治疗股骨粗隆间骨折提高骨固定完整性：一项实验和计算表征研究。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2025-01-27 DOI: 10.1080/10255842.2025.2456985

Mahmut Pekedis, Ahmet Adnan Karaarslan, Firat Ozan, Mesut Tahta, Cemil Kayali

引用次数: 0

A comparative analysis of CNNs and LSTMs for ECG-based diagnosis of arrythmia and congestive heart failure. CNNs与LSTMs心电图诊断心律失常和充血性心力衰竭的比较分析。

IF 1.6 4区医学

Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2026-05-01 Epub Date: 2025-01-30 DOI: 10.1080/10255842.2025.2456487

Nitish Katal, Hitendra Garg, Bhisham Sharma

引用次数: 0