IEEE Open Journal of Engineering in Medicine and Biology最新文献_第6页

Ocular Biomechanical Responses to Long-Duration Spaceflight 长时间太空飞行的眼部生物力学反应

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-09-05 DOI: 10.1109/OJEMB.2024.3453049

Marissé Masís Solano;Remy Dumas;Mark R Lesk;Santiago Costantino

{"title":"Ocular Biomechanical Responses to Long-Duration Spaceflight","authors":"Marissé Masís Solano;Remy Dumas;Mark R Lesk;Santiago Costantino","doi":"10.1109/OJEMB.2024.3453049","DOIUrl":"10.1109/OJEMB.2024.3453049","url":null,"abstract":"<italic>Objective:\u0000 To assess the impact of microgravity exposure on ocular rigidity (OR), intraocular pressure (IOP), and ocular pulse amplitude (OPA) following long-term space missions. OR was evaluated using optical coherence tomography (OCT) and deep learning-based choroid segmentation. IOP and OPA were measured with the PASCAL Dynamic Contour Tonometer (DCT). \u0000<italic>Results:\u0000 The study included 26 eyes from 13 crew members who spent 157 to 186 days on the International Space Station. Post-mission results showed a 25% decrease in OPA (p < 0.005), an 11% decrease in IOP from 16.0 mmHg to 14.2 mmHg (p = 0.04), and a 33% reduction in OR (p = 0.04). No significant differences were observed between novice and experienced astronauts. \u0000<italic>Conclusions:\u0000 These findings reveal previously unknown effects of microgravity on the eye's mechanical properties, contributing to a deeper understanding of Spaceflight-Associated Neuro-ocular Syndrome (SANS). Long-term space missions significantly alter ocular biomechanics and have the potential to become biomarkers of disease progression.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"6 ","pages":"127-132"},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10666778","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergy-Dependent Center-of-Mass Control Strategies During Sit-to-Stand Movements 从坐到站运动过程中依赖协同作用的质量中心控制策略

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-09-05 DOI: 10.1109/OJEMB.2024.3454970

Simone Ranaldi;Leonardo Gizzi;Giacomo Severini;Cristiano De Marchis

{"title":"Synergy-Dependent Center-of-Mass Control Strategies During Sit-to-Stand Movements","authors":"Simone Ranaldi;Leonardo Gizzi;Giacomo Severini;Cristiano De Marchis","doi":"10.1109/OJEMB.2024.3454970","DOIUrl":"10.1109/OJEMB.2024.3454970","url":null,"abstract":"The characterization, through the concept of muscle synergies, of clinical functional tests is a valid tool that has been widely adopted in the research field. While this theory has been exploited for a description of the motor control strategies underlying the biomechanical task, the biomechanical correlate of the synergistic activity is yet to be fully described. In this paper, the relationship between the activity of different synergies and the center of mass kinematic patterns has been investigated; in particular, a group of healthy subjects has been recruited to perform simple sit-to-stand tasks, and the electromyographic data has been recorded for the extraction of muscle synergies. An optimal model selection criterion has been adopted for dividing the participants by the number of synergies characterizing their own control schema. Synergistic activity has then been mapped onto the phase-space description of the center of mass kinematics, investigating whether a different number of synergies implies the exploration of different region of the phase-space itself. Results show how using an additional motor module allow for a wider trajectory in the phase-space, paving the way for the use of kinematic feedback to stimulate the activity of different synergies, with the aim of defining synergy-based rehabilitation or training protocols.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"6 ","pages":"28-34"},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10666157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Breast Cancer Detection on Dual-View Sonography via Data-Centric Deep Learning 通过以数据为中心的深度学习在双视角超声波成像上检测乳腺癌

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-09-05 DOI: 10.1109/OJEMB.2024.3454958

Ting-Ruen Wei;Michele Hell;Aren Vierra;Ran Pang;Young Kang;Mahesh Patel;Yuling Yan

{"title":"Breast Cancer Detection on Dual-View Sonography via Data-Centric Deep Learning","authors":"Ting-Ruen Wei;Michele Hell;Aren Vierra;Ran Pang;Young Kang;Mahesh Patel;Yuling Yan","doi":"10.1109/OJEMB.2024.3454958","DOIUrl":"10.1109/OJEMB.2024.3454958","url":null,"abstract":"<italic>Goal:\u0000 This study aims to enhance AI-assisted breast cancer diagnosis through dual-view sonography using a data-centric approach. \u0000<italic>Methods:\u0000 We customize a DenseNet-based model on our exclusive dual-view breast ultrasound dataset to enhance the model's ability to differentiate between malignant and benign masses. Various assembly strategies are designed to integrate the dual views into the model input, contrasting with the use of single views alone, with a goal to maximize performance. Subsequently, we compare the model against the radiologist and quantify the improvement in key performance metrics. We further assess how the radiologist's diagnostic accuracy is enhanced with the assistance of the model. \u0000<italic>Results:\u0000 Our experiments consistently found that optimal outcomes were achieved by using a channel-wise stacking approach incorporating both views, with one duplicated as the third channel. This configuration resulted in remarkable model performance with an area underthe receiver operating characteristic curve (AUC) of 0.9754, specificity of 0.96, and sensitivity of 0.9263, outperforming the radiologist by 50% in specificity. With the model's guidance, the radiologist's performance improved across key metrics: accuracy by 17%, precision by 26%, and specificity by 29%. \u0000<italic>Conclusions:\u0000 Our customized model, withan optimal configuration for dual-view image input, surpassed both radiologists and existing model results in the literature. Integrating the model as a standalone tool or assistive aid for radiologists can greatly enhance specificity, reduce false positives, thereby minimizing unnecessary biopsies and alleviating radiologists' workload.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"6 ","pages":"100-106"},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10666269","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Guided Conditional Diffusion Classifier (ConDiff) for Enhanced Prediction of Infection in Diabetic Foot Ulcers 用于增强糖尿病足溃疡感染预测的条件扩散分类器 (ConDiff)

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-09-02 DOI: 10.1109/OJEMB.2024.3453060

Palawat Busaranuvong;Emmanuel Agu;Deepak Kumar;Shefalika Gautam;Reza Saadati Fard;Bengisu Tulu;Diane Strong

{"title":"Guided Conditional Diffusion Classifier (ConDiff) for Enhanced Prediction of Infection in Diabetic Foot Ulcers","authors":"Palawat Busaranuvong;Emmanuel Agu;Deepak Kumar;Shefalika Gautam;Reza Saadati Fard;Bengisu Tulu;Diane Strong","doi":"10.1109/OJEMB.2024.3453060","DOIUrl":"10.1109/OJEMB.2024.3453060","url":null,"abstract":"<italic>Goal:\u0000 To accurately detect infections in Diabetic Foot Ulcers (DFUs) using photographs taken at the Point of Care (POC). Achieving high performance is critical for preventing complications and amputations, as well as minimizing unnecessary emergency department visits and referrals. \u0000<italic>Methods:\u0000 This paper proposes the Guided Conditional Diffusion Classifier (ConDiff). This novel deep-learning framework combines guided image synthesis with a denoising diffusion model and distance-based classification. The process involves (1) generating guided conditional synthetic images by injecting Gaussian noise to a guide (input) image, followed by denoising the noise-perturbed image through a reverse diffusion process, conditioned on infection status and (2) classifying infections based on the minimum Euclidean distance between synthesized images and the original guide image in embedding space. \u0000<italic>Results:\u0000 ConDiff demonstrated superior performance with an average accuracy of 81% that outperformed state-of-the-art (SOTA) models by at least 3%. It also achieved the highest sensitivity of 85.4%, which is crucial in clinical domains while significantly improving specificity to 74.4%, surpassing the best SOTA model. \u0000<italic>Conclusions:\u0000 ConDiff not only improves the diagnosis of DFU infections but also pioneers the use of generative discriminative models for detailed medical image analysis, offering a promising approach for improving patient outcomes.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"6 ","pages":"20-27"},"PeriodicalIF":2.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10663215","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of Survival in Patients With Esophageal Cancer After Immunotherapy Based on Small-Size Follow-Up Data 基于小规模随访数据预测食管癌患者接受免疫疗法后的生存期

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-09-02 DOI: 10.1109/OJEMB.2024.3452983

Yuhan Su;Chaofeng Huang;Chen Yang;Qin Lin;Zhong Chen

{"title":"Prediction of Survival in Patients With Esophageal Cancer After Immunotherapy Based on Small-Size Follow-Up Data","authors":"Yuhan Su;Chaofeng Huang;Chen Yang;Qin Lin;Zhong Chen","doi":"10.1109/OJEMB.2024.3452983","DOIUrl":"10.1109/OJEMB.2024.3452983","url":null,"abstract":"Esophageal cancer (EC) poses a significant health concern, particularly among the elderly, warranting effective treatment strategies. While immunotherapy holds promise in activating the immune response against tumors, its specific impact and associated reactions in EC patients remain uncertain. Precise prognosis prediction becomes crucial for guiding appropriate interventions. This study, based on data from the First Affiliated Hospital of Xiamen University (January 2017 to May 2021), focuses on 113 EC patients undergoing immunotherapy. The primary objectives are to elucidate the effectiveness of immunotherapy in EC treatment and to introduce a stacking ensemble learning method for predicting the survival of EC patients who have undergone immunotherapy, in the context of small sample sizes, addressing the imperative of supporting clinical decision-making for healthcare professionals. Our method incorporates five sub-learners and one meta-learner. Leveraging optimal features from the training dataset, this approach achieved compelling accuracy (89.13%) and AUC (88.83%) in predicting three-year survival status, surpassing conventional techniques. The model proves efficient in guiding clinical decisions, especially in scenarios with small-size follow-up data.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"5 ","pages":"769-782"},"PeriodicalIF":2.7,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10663258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Metrics for High-Density sEMG Analysis in the Time–Space Domain During Sustained Isometric Contractions 持续等长收缩时时空域高密度 sEMG 分析的新指标

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-08-26 DOI: 10.1109/OJEMB.2024.3449548

Giovanni Corvini;Michail Arvanitidis;Deborah Falla;Silvia Conforto

{"title":"Novel Metrics for High-Density sEMG Analysis in the Time–Space Domain During Sustained Isometric Contractions","authors":"Giovanni Corvini;Michail Arvanitidis;Deborah Falla;Silvia Conforto","doi":"10.1109/OJEMB.2024.3449548","DOIUrl":"https://doi.org/10.1109/OJEMB.2024.3449548","url":null,"abstract":"<italic>Goal:\u0000 This study introduces a novel approach to examine the temporal-spatial information derived from High-Density surface Electromyography (HD-sEMG). By integrating and adapting postural control parameters into a framework for the analysis of myoelectrical activity, new metrics to evaluate muscle fatigue progression were proposed, investigating their ability to predict endurance time. \u0000<italic>Methods:\u0000 Nine subjects performed a fatiguing isometric contraction of the lumbar erector spinae. Topographical amplitude maps were generated from two HD-sEMG grids. Once identified the coordinates of the muscle activity, novel metrics for quantifying the muscle spatial distribution over time were calculated. \u0000<italic>Results:\u0000 Spatial metrics showed significant differences from beginning to end of the contraction, highlighting their ability of characterizing the neuromuscular adaptations in presence of fatigue. Additionally, linear regression models revealed strong correlations between these spatial metrics and endurance time. \u0000<italic>Conclusions:\u0000 These innovative metrics can characterize the spatial distribution of muscle activity and predict the time of task failure.","PeriodicalId":33825,"journal":{"name":"IEEE Open Journal of Engineering in Medicine and Biology","volume":"5 ","pages":"760-768"},"PeriodicalIF":2.7,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10646524","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrections to “Sparse Multichannel Decomposition of Electrodermal Activity With Physiological Priors” 对 "具有生理先验的稀疏多通道皮电活动分解 "的更正

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-08-26 DOI: 10.1109/OJEMB.2024.3444428

Samiul Alam;Md. Rafiul Amin;Rose T. Faghih

引用次数: 0

Introduction to the Special Section on Computational Modeling and Digital Twin Technology in Biomedical Engineering 生物医学工程中的计算建模和数字孪生技术特别分会简介

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-08-15 DOI: 10.1109/OJEMB.2024.3428898

Marianna Laviola

引用次数: 0

Cole–Cole Model for the Dielectric Characterization of Healthy Skin and Basal Cell Carcinoma at THz Frequencies 太赫兹频率下健康皮肤和基底细胞癌的介电特性科尔-科尔模型

IF 2.7

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-08-05 DOI: 10.1109/OJEMB.2024.3438562

Enrico Mattana;Matteo Bruno Lodi;Marco Simone;Giuseppe Mazzarella;Alessandro Fanti

引用次数: 0

Developing a Vital Signal Detection Electrode for Fabric Substrate Using a High-Performance Conductive Carbon-Based Ink 使用高性能导电碳基墨水开发织物基底的生命信号检测电极

IF 5.8

IEEE Open Journal of Engineering in Medicine and Biology Pub Date : 2024-07-19 DOI: 10.1109/ojemb.2024.3431030

K. Chansaengsri, B. Tunhoo, K. Onlaor, T. Thiwawong

引用次数: 0