Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)最新文献_第7页

The effects of misalignment of the center of rotation of the ankle on stiffness measurements 踝关节旋转中心错位对刚度测量的影响

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757090

B. Schmidt, J. Given, J. Dewald

引用次数: 2

New insights into ventricular tachyarrhythmia onset using heart rate signals decomposition 利用心率信号分解对室性心动过速发作的新见解

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756976

G. Thonet, E. Pruvot, J. Vesin, M. Fromer

引用次数: 2

Therapeutic effect of Vitamin C on electroporation mediated muscle injury in vivo 维生素C对电穿孔介导的肌肉损伤的治疗作用

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756827

G. Abramov, M. Bier, J. Hannig, R.C. Lee

引用次数: 0

Open flow microperfusion-interstitial sampling of large molecules 开放流微灌注-大分子的间隙取样

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756797

M. Ellmerer, P. Wach, Trajanoski, L. Schaupp, W. Regittnig, G. Brunner, G. Sendlhofer, A. Wutte, F. Skrabal, T. Pieber

{"title":"Open flow microperfusion-interstitial sampling of large molecules","authors":"M. Ellmerer, P. Wach, Trajanoski, L. Schaupp, W. Regittnig, G. Brunner, G. Sendlhofer, A. Wutte, F. Skrabal, T. Pieber","doi":"10.1109/IEMBS.1997.756797","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.756797","url":null,"abstract":"In this study the open flow microperfusion technique was used to sample interstitial fluid from the subcutaneous adipose tissue of 6 healthy volunteers during a 6-h fast. The system is based on a perforated double lumen catheter which is perfused by isotonic, ionfree perfusate. The collected samples were analysed for substances of different molecular weight (sodium, potassium, glucose, lactate and albumin). The results indicate that all considered substances could be sampled and measured during the whole study period. The sodium, potassium and lactate concentrations did not change (p<0.05 versus basal level) during the study. However, a significant decrease (p<0.05 vs. basal level) of the glucose and the albumin concentration were observed 3 hours and 1.5 hours after insertion of the catheter, respectively. In this study it could be shown that sampling of molecules even with a high molecular weight like albumin is possible. The gradual but slow decline of the glucose and albumin concentration in the sampled perfusate might be caused by drainage through the relatively high perfused catheter (4 /spl mu/l/spl middot/min/sup -1/).","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"65 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124533658","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

An estimation of the correlation dimension for the EEG in emotional states 情绪状态下脑电相关维数的估计

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757006

C. S. Ryu, Seunghwan Kim, S. Park, M. Whang

{"title":"An estimation of the correlation dimension for the EEG in emotional states","authors":"C. S. Ryu, Seunghwan Kim, S. Park, M. Whang","doi":"10.1109/IEMBS.1997.757006","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.757006","url":null,"abstract":"To study the underlying dynamics of emotional states in the human brain by a nonlinear dynamical analysis, we estimate the correlation dimension for the electroencephalogram (EEG) in positive and negative emotional states. The time delay for the reconstruction of the EEG in the embedding space is not determined from a single function, such as the autocorrelation function, but is determined to yield the largest plateau in the local slope of the correlation integral for each embedding dimension. In our case, the absence of an abrupt change in magnitudes of singular values makes singular value decomposition useless, which implies the absence of a dominant process in emotional states. Our results show that the correlation exponent for the emotional state is higher than that for the rest state even if the variation between subjects is considered. This may be a first step to discriminate between \"Yes\" and \"No\" for communication via EEG, particularly for severely disabled people.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127790660","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: 10

Wavelet analysis of phonocardiograms: differences between normal and abnormal heart sounds 心音图的小波分析:正常与异常心音的差异

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757032

F. Jandre, M.N. Souza

引用次数: 12

Fetal transmission pulse oximetry 胎儿传递脉搏血氧仪

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.758830

Donald, Masini, W. Paulsen, Riehard, Brouillard, Vijay, Iyerl

引用次数: 1

A large scale memory (LAMSTAR) neural network for medical diagnosis 一种用于医学诊断的大规模记忆神经网络

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756622

D. Graupe, H. Kordylewski

引用次数: 9

Continuous measurement of segmental and whole body bio-impedance 连续测量节段和全身生物阻抗

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.758761

F. Zhu, D. Schneditz, E. Wang, N. Levin

{"title":"Continuous measurement of segmental and whole body bio-impedance","authors":"F. Zhu, D. Schneditz, E. Wang, N. Levin","doi":"10.1109/IEMBS.1997.758761","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.758761","url":null,"abstract":"Measurement of whole body bioimpedance provides a non-invasive and practical approach to estimate extracellular volume (ECV) in man. However, recent data indicate that ECV cannot be treated as a homogeneous compartment without obtaining paradoxical results. Therefore, bioimpedance measurements should include measurements of body segments such as the arm, the trunk, and the leg. A digital switch was developed and used to consecutively select different body segments for the continuous measurement of whole body and segmental bioimpedance at a minimum sampling period of 3 seconds. Bioimpedance data were modeled to determine the resistance of the ECV in the segments and in the whole body for a period of 30 minutes where subjects were in supine body position followed by a 30 minute standing phase. During supine body position modeled extracellular resistance increased in the leg, the arm, and in the whole body but slightly increased in the trunk. Changes in extracellular resistance reversed with subjects assuming a standing position. These measurements reflect the shifts in ECV between segments to be expected with changes in body position. Simultaneous measurement of bioimpedance in different body segments utilizing this approach might be useful to analyze the nature of fluid shifts in clinical applications such as hemodialysis and ultrafiltration.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122273259","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

Characterization of coronary plaque in intravascular ultrasound using histological correlation 血管内超声对冠状动脉斑块的组织学相关性研究

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757663

K. J. Dixon, D. Vince, R. Cothren, J. F. Cornhill

{"title":"Characterization of coronary plaque in intravascular ultrasound using histological correlation","authors":"K. J. Dixon, D. Vince, R. Cothren, J. F. Cornhill","doi":"10.1109/IEMBS.1997.757663","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.757663","url":null,"abstract":"Atherosclerosis is a degenerative arterial disease that leads to the gradual blockage of vessels due to plaque formation or acute ischaemic events such as plaque rupture. A thorough understanding of plaque morphology is necessary in the determination of factors underlying coronary artery disease. Intravascular ultrasound (IVUS) represents a diagnostic technique that provides tomographic visualization of coronary arteries. Ultrasound reflects sound at the interfaces between tissue of different acoustic refractive indices theoretically implying that various components within an ultrasound image should be distinguishable. The aim of this study is to classify plaque lesions using advanced digital image processing. Diseased samples were obtained from excised human coronary arteries at autopsy. Intravascular ultrasound images were acquired using an HP Sonos clinical IVUS imaging system and 3.5 F, 30 MHz catheters. Regions of interest were selected within the IVUS images with plaque types determined from the corresponding histological sections. Second order statistical texture features were computed for each region of interest after which tissue classification was performed using discriminant analysis. Preliminary results show that classification and recognition of plaque type is possible for IVUS imaging in vitro. Various plaque types respond differently to clinical interventions and proper classification will therefore be invaluable in tracking the progression, regression, and treatment of coronary artery disease.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132338897","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: 14