2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society最新文献_第10页

Medmap: a powerful multichannel ELG recordings analyzer Medmap:一个强大的多通道ELG录音分析仪

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1017211

A. Martínez, J. Millet, J. Chorro, A. Cebrián, M. Arredondo, I. Garcia

{"title":"Medmap: a powerful multichannel ELG recordings analyzer","authors":"A. Martínez, J. Millet, J. Chorro, A. Cebrián, M. Arredondo, I. Garcia","doi":"10.1109/IEMBS.2001.1017211","DOIUrl":"https://doi.org/10.1109/IEMBS.2001.1017211","url":null,"abstract":"The study and analysis of multiple recording electrograms (ELG) in experimental models requires dedicated software for their processing. This software must be quick and efficient in manipulating the enormous amounts of recorded data. Furthermore, the software has to be easily extensible in order to introduce new work methods and analysis algorithms adapted to the needs of each research group. This has led us to develop a modular software package in which introduction of new functionalities will not require the development of a new program, resulting in considerable time savings. For development we chose MATLAB, an interactive program with high computing capabilities and powerful tools for graphic visualization. Being a standard platform, developed code can be easily modified and the functionality of any module can be optimised and/or altered at any time, allowing implementation of the latest scientific advances. This software has been conceived for many applications, although in this paper we focus our experience on the study of fibrillatory processes in experimental models where up to 256 electrograms have been recorded using a cardiac electrical system.","PeriodicalId":386546,"journal":{"name":"2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126370901","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: 3

Characterization of autonomic nervous influences on PR and RR intervals in the electrocardiogram 自主神经对心电图PR和RR间期影响的表征

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1018989

E. Sheridan, C. Heneghan, M. O'Malley, P. Nolan, W. McNicholas, J. Cullen, P. Nolan

引用次数: 2

Synchronized measurements of maximum blood flow velocities in carotid, brachial and femoral arteries, and ECG in human posture changes 同步测量人体姿势变化时颈动脉、肱动脉和股动脉的最大血流速度和心电图

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1018870

Y. Hirao, T. Kuroda, D. Zhang, Y. Kinouchi, H. Yamaguchi, K. Yoshizaki

引用次数: 5

In vivo evaluation of pressure head and flow rate estimation in a continuous-flow artificial heart 连续流动人工心脏的体内压头评估及流速估算

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1017446

A. Tanaka, M. Yoshizawa, T. Yamada, K. Abe, H. Takeda, T. Yambe, S. Nitta

{"title":"In vivo evaluation of pressure head and flow rate estimation in a continuous-flow artificial heart","authors":"A. Tanaka, M. Yoshizawa, T. Yamada, K. Abe, H. Takeda, T. Yambe, S. Nitta","doi":"10.1109/IEMBS.2001.1017446","DOIUrl":"https://doi.org/10.1109/IEMBS.2001.1017446","url":null,"abstract":"To avoid using sensors with low biocompatibility and low durability in implantable TAH systems, the authors previously proposed a new method for estimating instantaneous values of flow rate and pressure head on the basis of voltage, current and rotational speed in a motor driven centrifugal pump. The previous in vitro experiments showed that the proposed estimator could automatically compensate for the effect of the change in blood viscosity on the estimation accuracy by employing two kinds of auto-regressive exogenous model. In this study, validity and reliability of this estimation method were ascertained in an acute animal experiment. In the experiment, two centrifugal blood pumps were implanted into an adult goat as a total artificial heart. Results of estimation were compared with true values when blood viscosity was changed by injecting physiological saline. The results indicated that the system could successfully estimate pressure head by compensating the change of viscosity although the estimation accuracy of the in vivo estimation was not so high as that of the previous in vitro tests.","PeriodicalId":386546,"journal":{"name":"2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128082035","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

Small-field angiographic imaging of tumor blood vessels using synchrotron radiation 肿瘤血管的同步辐射小视场血管造影

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1017254

K. Umetani, T. Yamashita, N. Maehara, S. Imai, Y. Kajihara

引用次数: 0

An experimental and model based investigation of the potential and limitations of surface EMG spectral analysis for assessment of motor unit recruitment strategy 基于实验和模型的表面肌电光谱分析在评估运动单元招募策略中的潜力和局限性的研究

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1020410

D. Farina, R. Merletti

{"title":"An experimental and model based investigation of the potential and limitations of surface EMG spectral analysis for assessment of motor unit recruitment strategy","authors":"D. Farina, R. Merletti","doi":"10.1109/IEMBS.2001.1020410","DOIUrl":"https://doi.org/10.1109/IEMBS.2001.1020410","url":null,"abstract":"Characteristic frequencies of the surface EMG power spectrum have been used in the past as indicative of motor unit (MU) recruitment, since they are rather insensitive to changes of MU firing rates and thus they should remain constant when only rate coding is used to modulate muscle force. However, this speculation has not been yet validated by simulated and experimental data. In this paper, a model of surface EMG signal generation and detection is used to simulate EMG signals detected during linearly increasing force contractions. Different MU control strategies (corresponding to different ways for force generation by recruitment and rate coding) are simulated. A number of simulations are performed to study the effect of a random distribution of MUs in the muscle's cross-section upon the surface EMG. The results are compared with those obtained analyzing the EMG signals detected experimentally during linearly increasing force contractions of the biceps brachii muscle in 10 subjects. Results show that the volume conductor properties may act as confounding factors which may mask any relationship between characteristic spectral frequencies and conduction velocity as a size principle parameter. It is concluded that more advanced signal processing techniques which aim at the analysis of single MU activity are required for the surface EMG based assessment of the central nervous system control strategy.","PeriodicalId":386546,"journal":{"name":"2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":"18 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125619242","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

XMedIA communication system: an XML driven medical image processing and archiving environment XMedIA通信系统:一个XML驱动的医学图像处理和归档环境

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1019621

G. C. Sakellaris, D. Fotiadis

引用次数: 0

Implementation of spectral maxima sound processing for cochlear implants by using Bark scale frequency band partition 利用Bark尺度频段划分实现人工耳蜗的频谱最大声处理

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1020648

Han Xianhua, Nie Kaibao

引用次数: 3

MR-guided vascular interventions 核磁共振引导的血管介入

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1019737

E. Atalar

引用次数: 1

Integration of distributed healthcare information systems: application of CEN/TC251 ENV13606 分布式医疗信息系统的集成:CEN/TC251 ENV13606的应用

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2001-10-25 DOI: 10.1109/IEMBS.2001.1019648

J. Maldonado, M. Robles, C. Cano

引用次数: 4