Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society最新文献_第9页

A coherent scatter computed tomography with scintillator-CCD system 闪烁- ccd系统相干散射计算机断层扫描

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.651947

A. Hoshino, T. Takeda, M. Akiba, T. Kazama, Y. Watanabe, T. Yuasa, K. Hyodo, A. Uchida, T. Akatsuka, Y. Itai

引用次数: 2

Estimation of the changes of the beat-to-beat 3D orientation of the heart from the orthogonal ECG 从正交心电图估计心脏搏动-搏动三维方向的变化

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.647493

E.H. Tchekiken, J. Fayn, P. Rubel, I. Magnin, G. Giménez

引用次数: 1

Dose of dialysis predicted by continuous measurement of dialysate urea concentration 通过连续测定透析液尿素浓度预测透析剂量

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.646268

A. Cappello, R. Tartarini, F. Paolini, P. Calzavara

{"title":"Dose of dialysis predicted by continuous measurement of dialysate urea concentration","authors":"A. Cappello, R. Tartarini, F. Paolini, P. Calzavara","doi":"10.1109/IEMBS.1996.646268","DOIUrl":"https://doi.org/10.1109/IEMBS.1996.646268","url":null,"abstract":"On-line estimation of urea kinetic parameters from dialysate urea concentration (DUN) is proposed and applied to dialysis dose prediction during therapy. Continuous measurement of DUN was performed by a post-filter enzymatic sensor (Hospal Dasco Spa) on six patients undergoing standard haemodialysis. In order to allow for early and reliable prediction of the end of dialysis values, a variable-volume double-pool model is used since the classical first order model cannot account for the fast-to-slow dynamics occurring during the first hour. Three parameter combinations are estimated at each time on the basis of the past DUN history: K/sub d//V/sub 0/, K/sub d/C/sub 0/ and VR, where K/sub d/, V/sub o/, C/sub o/, and VR are the dialyzer clearance, the total urea distribution volume, the initial plasma concentration, and the intra-extracellular volume ratio, respectively. Residuals between model-predicted and measured data have an average root mean square error of about 3% of the DUN excursion and model parameters show realistic values. The final dose of dialysis is predicted by multiplying K/sub d//V/sub o/ for the scheduled duration of the dialysis session. Prediction after 70 min from the beginning of the session differs on the average by less than 5% from the final value thus demonstrating the applicability of the proposed method. Furthermore, knowledge of model parameters allows for early and accurate prediction of the total urea removed.","PeriodicalId":20427,"journal":{"name":"Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81112423","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

ECG data compression using wavelet and fractal interpolation 基于小波和分形插值的心电数据压缩

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.647468

W. Lee, Y. Yoon

引用次数: 1

Continuous measurement of sweat electrolyte quantity to evaluate mental stress 连续测量汗液电解质量以评估精神压力

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.656835

A. Shamsuddin, T. Togawa

引用次数: 4

Variable single-trial evoked potential estimation via principal component identification 通过主成分识别的可变单试验诱发电位估计

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.652657

D. H. Lange, G. Inbar

引用次数: 20

Mathematical analysis of the autonomic influence on the heart rate variability 自主神经对心率变异性影响的数学分析

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.647560

S. Cavalcanti, S. Severi, C. Boarini

{"title":"Mathematical analysis of the autonomic influence on the heart rate variability","authors":"S. Cavalcanti, S. Severi, C. Boarini","doi":"10.1109/IEMBS.1996.647560","DOIUrl":"https://doi.org/10.1109/IEMBS.1996.647560","url":null,"abstract":"The influence of arterial baroreceptor reflex on the heart rate variability is analysed by using a simple computer model of short-term autonomic regulation of heart activity. As basic mechanisms sufficient to elicit heart rate oscillations, the model incorporates: the systemic circulation, a non-pulsatile cardiac pump and a delayed non-linear negative-feedback simulating the arterial baroreceptor reflex. Short-term autonomic control of the cardiac pump is effected through sympathetic and parasympathetic divisions whose activities are modulated by afferent vagal tone. Model dynamics result high sensitive to changes of autonomic regulation parameters whose variations within a physiological range cause heart rate and arterial pressure to oscillate with frequencies within 0.1-0.4 Hz band. Simulation results reveal that because of the different latent periods characterising the sympathetic- and vagal-mediate controls two distinct oscillatory components with incommensurate frequencies may appear. Heart rate power spectrum exhibits a peak in LF band whose frequency diminishes form 0.17 to 0.12 Hz when efferent parasympathetic activity is partially depressed. Instead, an oscillatory component with high-frequency (0.4 Hz) appears when an enhancement of vagal activation or a partial inhibition of the sympathetic excitation is simulated.","PeriodicalId":20427,"journal":{"name":"Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1996-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84017113","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: 5

Adaptive spectral analysis of sleep spindles based on subspace tracking 基于子空间跟踪的睡眠纺锤体自适应频谱分析

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.652668

O. Caspary, P. Nus

引用次数: 5

A basic analysis to develop automatic tracking system for stray aged-persons by use of Personal Handy-phone System 浅析利用个人手机系统开发流浪老人自动跟踪系统

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.656954

R. Hosaka, M. Saito

引用次数: 2

Classification of diabetic retinopathy using neural networks 糖尿病视网膜病变的神经网络分类

Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1996-10-31 DOI: 10.1109/IEMBS.1996.647546

H.T. Nguyen, M. Butler, A. Roychoudhry, A. Shannon, J. Flack, P. Mitchell

引用次数: 31