Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference最新文献

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Comparative Analysis of Photoplethysmogram (PPG) Waveform Characteristics Across Various Body Sites Under Normal and Apneic Conditions. 正常和呼吸暂停状态下不同身体部位的光容积脉搏图(PPG)波形特征的比较分析。
Joe Rahme, Sahera Saleh, Tamara Al-Sadek, Jason Amatoury, Massoud Khraiche
{"title":"Comparative Analysis of Photoplethysmogram (PPG) Waveform Characteristics Across Various Body Sites Under Normal and Apneic Conditions.","authors":"Joe Rahme, Sahera Saleh, Tamara Al-Sadek, Jason Amatoury, Massoud Khraiche","doi":"10.1109/EMBC53108.2024.10781801","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10781801","url":null,"abstract":"<p><p>Detecting sleep apnea through wearable devices poses challenges due to the condition's variability across populations and the inconsistencies in measurements attributed to current wearable technologies. This study aims at comparing photoplethysmogram (PPG) waveform characteristics in healthy subjects, including the change in amplitude, width, and time to peak (Tp) of the signal. PPG signals were recorded at six different body sites (wrist upper, wrist lower, ring finger, thumb, neck, and head) under both simulated normal and apneic conditions. A key objective of this work was to identify optimal LED intensities for detecting these waveform features at each site, providing valuable insights for future development of PPG hardware by pinpointing the most effective intensities. Additionally, the research aims for a better understanding of the variation of the PPG waveform between different body sites.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computational analysis of light diffusion and thermal effects during Transcranial Photobiomodulation. 经颅光生物调节过程中光扩散和热效应的计算分析。
Alexander R Guillen, Dennis Q Truong, Paula Cristina Faria, Brian Pryor, Luis De Taboada, Abhishek Datta
{"title":"Computational analysis of light diffusion and thermal effects during Transcranial Photobiomodulation.","authors":"Alexander R Guillen, Dennis Q Truong, Paula Cristina Faria, Brian Pryor, Luis De Taboada, Abhishek Datta","doi":"10.1109/EMBC53108.2024.10782579","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782579","url":null,"abstract":"<p><p>Transcranial Photobiomodulation (tPBM) is a non-invasive procedure where light is applied to the scalp to modulate underlying brain activity. tPBM has recently attracted immense interest as a potential therapeutic option for a range of neurological and neuropsychiatric conditions. The common technological questions related to this modality are extent of light penetration and associated scalp and brain temperature increases. Limited computational efforts to quantify these aspects are restricted to simplified models. We consider here a 3D high-resolution (1 mm) and anatomically realistic model to simulate light propagation and thermal effects. We consider a dose of 100 mW /cm<sup>2</sup> and use a single light source targeting the F3 location based on 10-20 EEG. Our simulations reveal that while the induced irradiance distribution largely mimics the shape and extent of the source, there is a blurring effect at the brain. This diffusion is attributed to the scalp, skull, and compounded at the surface of the cerebrospinal fluid. Around 1% of the injected irradiance reaches the gray matter. As expected and aligned with previous efforts, the scalp accounts for the greatest loss (~65%). We observe a nominal 0.38 °C rise in the scalp in regions directly underneath the source. There is negligible temperature rise in the brain. Finally, irradiance reduces to 0.01 mW /cm<sup>2</sup> at ~13.5 cm from the scalp surface.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computational Analysis of Mechanical Interactions between a Soft Robotic Device and a Skin-Muscle Phantom for Mechanotherapy. 机械治疗用软体机器人装置与皮肤-肌肉模体之间力学相互作用的计算分析。
Victor Ticllacuri, Renato Mio
{"title":"Computational Analysis of Mechanical Interactions between a Soft Robotic Device and a Skin-Muscle Phantom for Mechanotherapy.","authors":"Victor Ticllacuri, Renato Mio","doi":"10.1109/EMBC53108.2024.10782886","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782886","url":null,"abstract":"<p><p>Studying the soft robot-tissue mechanical interaction in muscle stimulation devices poses a significant challenge due to the complex behavior of the materials involved. To advance this field, this paper models computationally three types of soft elastomeric actuators designed to perform deep cyclic compression stimuli on human soft tissues for muscle rehabilitation by mechanotherapy. The analysis focuses on the interaction between a phantom representing transversely isotropic muscle and homogeneous skin, with a soft robotic device comprised of a hyperelastic actuator and a rigid support. Results from deformation, stress-strain and surface pressure analysis demonstrate efficient actuation, suggesting deep and focused stimulation on the muscle, while actuators exhibit reliable safety factors and load distribution, implying longer operational life. This lightweight and compact soft robotic device is suitable for integration into a wearable suit for targeted muscle groups stimulation in the lower limbs. Furthermore, this computational approach represents a significant advance in the biomechanical study of soft robot-human tissues interaction, with potential for generalization in similar biomedical device applications. Keywords-Soft Robotics, Mechanotherapy, Transversely Isotropic Muscle, Human-Robot interaction.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a soft-type glove capable of customizing finger rehabilitation exercises considering differences in physique. 一种能够根据体质差异定制手指康复练习的软型手套的开发。
Ritsuki Nishizawa, Tetsuya Hasegawa, Shouhei Shirafuji, Jun Ota, Arito Yozu
{"title":"Development of a soft-type glove capable of customizing finger rehabilitation exercises considering differences in physique<sup />.","authors":"Ritsuki Nishizawa, Tetsuya Hasegawa, Shouhei Shirafuji, Jun Ota, Arito Yozu","doi":"10.1109/EMBC53108.2024.10782734","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782734","url":null,"abstract":"<p><p>When designing a hand rehabilitation device, it is important to account for the differences in physique among patients and tailor the rehabilitation exercises to each patient's needs. This paper presents the prototype of a soft cable-driven glove capable of easily adjusting the glove to fit the individual physique of the patient and customizing finger rehabilitation exercises. Considering the length of the phalanges and the thickness of the finger, the position of fixed parts on the index finger can be easily adjusted. In order to enable various index finger rehabilitation appropriate for the patient, four cable-based cable routing for the index finger was adopted. The kinematic model of the glove was experimentally verified and utilized to plan the rehabilitation exercises. Based on this kinematic model, four representative finger rehabilitation exercises were operated with the developed glove on four different sizes of artificial fingers. The adaptability and adjustability of the glove to four artificial fingers were proved by demonstrating the possibility of assisting with various rehabilitation exercises while driving the three joints of the index finger independently.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an Electromechanical Biomimetic Prosthesis using 3D Printing: Initial Findings for Interphalangeal and Metacarpophalangeal Joints. 使用3D打印的机电仿生假体的开发:指间关节和掌指关节的初步发现。
J Inan Aguilera B, Jorge Aguilar, Fabian Figueroa, Manuel Gutierrez, Britam Gomez
{"title":"Development of an Electromechanical Biomimetic Prosthesis using 3D Printing: Initial Findings for Interphalangeal and Metacarpophalangeal Joints.","authors":"J Inan Aguilera B, Jorge Aguilar, Fabian Figueroa, Manuel Gutierrez, Britam Gomez","doi":"10.1109/EMBC53108.2024.10781836","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10781836","url":null,"abstract":"<p><p>This study presents the design and preliminary evaluation of a biomimetic prosthetic hand, leveraging 3D printing. Constructed using PLA for bone structures obtained from CT scans and TPU A95 for ligaments, the prosthetic's kinematics were evaluated focusing on the index finger. Controlled by DC motors, its movements were analyzed using Kinovea software and a 240 fps camera. The results showed high correlation coefficients (R<sup>2</sup> ≥ 0.92) for abduction, adduction, and phalange movements, with mean absolute errors ranging from -3.09° to 10.56°. These findings highlight the need for precise anatomical adjustments and confirm the prosthetic's efficacy in mimicking natural hand movements. This research advances the development of accessible, functional upper limb prosthetics, and underscores directions for enhancing their precision and functionality.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an electro-pneumatic calf muscle actuator to estimate peripheral venous oxygen saturation using photoplethysmography. 利用光电容积脉搏波描记术估计外周静脉氧饱和度的电动气动小腿肌肉致动器的研制。
Idoia Badiola, Stefan Noppeney, Vladimir Blazek, Steffen Leonhardt, Markus Lueken
{"title":"Development of an electro-pneumatic calf muscle actuator to estimate peripheral venous oxygen saturation using photoplethysmography.","authors":"Idoia Badiola, Stefan Noppeney, Vladimir Blazek, Steffen Leonhardt, Markus Lueken","doi":"10.1109/EMBC53108.2024.10782659","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782659","url":null,"abstract":"<p><p>In pulse oximetry, arterial blood pulsations are used to estimate peripheral arterial oxygen saturation (SpO2) using photoplethysmography (PPG). On the contrary, peripheral venous oxygen saturation (SvO2) assessment remains challenging due to the absence of rhythmic blood volume fluctuations in the venous system. This paper introduces an electro-pneumatic system emulating the Venous Muscle Pump Test (VMPT) to induce venous blood pulsations. The system achieves 0-120 mmHg pressure pulsations on the calf at 0.5 Hz, facilitating SvO2 estimation through a toe-attached PPG sensor. A proof-of-concept study on two subjects reveals PPG curves and venous blood volume variations comparable to conventional VMPT. The system outperforms in acquiring arterial pulsations, enabling simultaneous SpO2 estimation and the possibility of local oxygen consumption estimation. Estimated Ratio-of-Modulation and SvO2 values (84-89 %) align with classical VMPT, with lower mean deviation (3-15 % vs. 10-18 %). While promising, further studies with larger sample sizes, varied pressure parameters, and reference SvO2 values are essential for validating the system's efficacy. Future tests will further explore the system's potential to detect venous valve leakage.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EEG Channel Localization and Selection via Training with Noise Injection for BCI Applications. 脑机接口中基于噪声注入训练的脑电信号通道定位与选择。
Chun-Ming Huang, Wei-Lin Lai, Chih-Chyau Yang, Yi-Jie Hsieh, Chien-Ming Wu, Chu-Hui Lee
{"title":"EEG Channel Localization and Selection via Training with Noise Injection for BCI Applications.","authors":"Chun-Ming Huang, Wei-Lin Lai, Chih-Chyau Yang, Yi-Jie Hsieh, Chien-Ming Wu, Chu-Hui Lee","doi":"10.1109/EMBC53108.2024.10782774","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782774","url":null,"abstract":"<p><p>Electroencephalography (EEG) is crucial for monitoring brain activity in neuroscience and clinical applications. However, the multitude of channels recorded by scalp electrodes poses challenges, including impractical usage and high model complexity. This paper addresses the challenges of high dimensionality in EEG data and introduces an innovative EEG channel selection algorithm, LSvT-NI, based on model training and noise injection, achieving substantial reductions in channels, model size, and complexity while maintaining high classification accuracy. Validated through experiments on EEGNet and the BCI Competition IV 2a dataset, the algorithm proves beneficial for practical and cost-efficient scenarios. Specifically, experiments on the BCI Competition IV 2a dataset demonstrate that LSvT-NI with white noise and pink noise at 5dB SNR achieves a remarkable 77.3% and 72.7% reduction in channels, along with 11.7% and 11% reductions in model size, and 86.9% and 71.8% in computation complexity.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EEG markers for anticipated difficulty of future visual task. 预测未来视觉任务难度的脑电图标记。
Zichen Song, Hiroshi Higashi, Shin Ishii
{"title":"EEG markers for anticipated difficulty of future visual task.","authors":"Zichen Song, Hiroshi Higashi, Shin Ishii","doi":"10.1109/EMBC53108.2024.10781596","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10781596","url":null,"abstract":"<p><p>Estimating human subjective difficulty in response to anticipated future events is an important technique for maintaining physical safety and mental well-being through effective load management. Towards to developing such techniques, we utilized electroencephalography (EEG) to estimate subjective difficulty associated with a forthcoming visual task. Our experiment entailed presenting participants with two visual stimuli during an initial anticipation period. These stimuli, being partial elements of the subsequent task, allowed participants to voluntarily anticipate the level of difficulty of the upcoming visual task. We found significant correlations between task difficulty and event-related potentials (N100, P400, and P600) as well as frequency bands (theta and beta) in the anticipation period. These results highlight the importance of gating mechanisms and working memory in anticipation period and provide a theoretical foundation for monitoring cognitive load.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EEG-based Emotion Recognition using Graph Attention Network with Dual-Branch Attention Module. 基于脑电图的双分支注意模块图注意网络情感识别。
Cheng Li, Sio Hang Pun, Jia Wen Li, Fei Chen
{"title":"EEG-based Emotion Recognition using Graph Attention Network with Dual-Branch Attention Module.","authors":"Cheng Li, Sio Hang Pun, Jia Wen Li, Fei Chen","doi":"10.1109/EMBC53108.2024.10782334","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10782334","url":null,"abstract":"<p><p>EEG reveals human brain activities for emotion and becomes an important aspect of affective computing. In this study, we developed a novel approach, namely DAM-GAT, which incorporated a dual-branch attention module (DAM) into a graph attention network (GAT) for EEG-based emotion recognition. This method used the GAT to capture the local features of emotional EEG signals. To enhance the important EEG features for emotion recognition, the proposed method also included a DAM that calculated weights considering both channel and frequency information. Additionally, the relationship between EEG channels was determined using the phase-locking value (PLV) connectivity of corresponding EEG signals. Based on the SEED datasets, the proposed approach provided an accuracy of up to 94.63% for emotion recognition, demonstrating its impressive performance compared with other existing methods.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing Medication Recommendation with Hierarchical Network and Patient Visit Histories. 基于分层网络和患者就诊记录的药物推荐。
Sawrawit Chairat, Apichat Sae-Ang, Kerdkiat Suvirat, Thammasin Ingviya, Sitthichok Chaichulee
{"title":"Enhancing Medication Recommendation with Hierarchical Network and Patient Visit Histories.","authors":"Sawrawit Chairat, Apichat Sae-Ang, Kerdkiat Suvirat, Thammasin Ingviya, Sitthichok Chaichulee","doi":"10.1109/EMBC53108.2024.10781496","DOIUrl":"https://doi.org/10.1109/EMBC53108.2024.10781496","url":null,"abstract":"<p><p>Prescribing medications is an essential part of patient care and requires precision and personalization in selection. Our study introduces a hierarchical medication recommendation system that aims to improve the prescribing process. We use FastText to embed medical contexts and employ a hierarchical attention-based model to manage the hierarchical structure of medication codes. The system takes input data from the current visit and the three previous visits to make recommendations. We trained and evaluated our model on 99,417 anonymized primary care outpatient visits. Our model achieved a mean average precision (mean AP) of 0.8724, 0.7419, 0.6805, and 0.6184 at the first, second, third, and fourth levels of the ATC system, respectively. We demonstrate that incorporating patient visit histories can improve predictions. Our results provide a solution to improve medication prescribing and suggest possible extensions for more comprehensive recommendations.</p>","PeriodicalId":72237,"journal":{"name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","volume":"2024 ","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143559368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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