Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)最新文献_第6页

Theoretical and numerical comparisons between Laplace's solution and Poisson's solution to the forward problem for a finite right circular cylinder [EIT image reconstruction] 有限右圆柱正问题拉普拉斯解与泊松解的理论与数值比较[EIT图像重建]

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.745628

F. Kleinermann, N. J. Avis, F. Alhargan

引用次数: 0

Study on electro-bactericidal effect of the metal coating flat sheet membrane for Pseudomonas aeruginosa 金属涂层平板膜对铜绿假单胞菌电杀菌效果的研究

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.745637

T. Sugawara, K. Kimura, K. Misawa, J. Arisawa, O. Igarashi

{"title":"Study on electro-bactericidal effect of the metal coating flat sheet membrane for Pseudomonas aeruginosa","authors":"T. Sugawara, K. Kimura, K. Misawa, J. Arisawa, O. Igarashi","doi":"10.1109/IEMBS.1998.745637","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745637","url":null,"abstract":"A newly designated metal coating flat sheet membrane was examined for bactericidal activity using Pseudomonas aeruginosa which was recognized as a pathogen to opportunistic infection in hospitals. After the bacteria were artificially trapped into the membrane, an electric current was passed through the surface of the membrane. More than 90% of bacteria were reduced by the passing electric current, comparing with non-electric current control. The kinds of electric current were also tested for their bactericidal activities. Both direct current (DC) and alternating current (50 Hz AC) showed same bactericidal activity for Pseudomonas aeruginosa. Furthermore, steam was observed when an electric current was applied. From these observations, we considered that the application of DC or 50 Hz AC electric current to the metal coating flat sheet membrane could sterilize bacteria which was mechanically trapped, due to heat generation with electric current application.","PeriodicalId":156581,"journal":{"name":"Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129522968","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

Unsupervised fuzzy clustering analysis of fMRI series fMRI序列的无监督模糊聚类分析

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.745515

M. Fadili, S. Ruan, D. Bloyet, B. Mazoyer

引用次数: 17

Noninvasive measurement of left ventricular contractility using gated myocardial SPECT and arterial pressure tonometer 门控心肌SPECT和动脉压眼压计无创测量左心室收缩力

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.745960

Kyeong-Min Kim, D. Lee, June-Key Chung, M. Lee, Yong Jin Kim

{"title":"Noninvasive measurement of left ventricular contractility using gated myocardial SPECT and arterial pressure tonometer","authors":"Kyeong-Min Kim, D. Lee, June-Key Chung, M. Lee, Yong Jin Kim","doi":"10.1109/IEMBS.1998.745960","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745960","url":null,"abstract":"For the estimation of left ventricular (LV) contractility, the fully noninvasive measurement of the maximum elastance (E/sub max/) from the steady-state single loop of end systolic pressure volume relation (ESPVR) is attempted. For 32 patients with coronary artery disease, we performed the gated myocardial SPECT with the simultaneous measurement of radial artery pressure using automated tonometer. The left ventricular volume generated from quantitative gated SPECT (QGS) program of SPECT and the central aortic pressure transferred from radial artery pressure measured by automated tonometer were used to make a pressure-volume (PV) loop. With a single PV loop, E/sub max/, was calculated using (1) single PV loop estimation method based on the consistency of normalized elastance curve and (2) regression method based on time-linearity of elastance, respectively. The values of E/sub max/ by the first method were distributed within the range (2.3-5.3) and showed the independence on calculation trials and initial condition for iterative calculation. Normalized elastance curves were consistent for all patients. The E/sub max/ and V/sub 0/ for PV data from sequential gated SPECT acquisition showed the consistent value, respectively (r=0.91 for E/sub max/, r=0.99 for V/sub 0/). The values of E/sub max/ by the second method were within (0.7-5.1) and showed the linear relationship (E/sub max normalized/=2.15/spl times/E/sub max linear/+0.45, r=0.64, p<0.001) with E/sub max/ by the first method. Despite of the lack of comparison with multiple PV loop method, we found the clinical feasibility of this fully noninvasive E/sub max/, estimation method. Therefore, we concluded that E/sub max/ obtained by this methods could be useful for assessment of LV contractility.","PeriodicalId":156581,"journal":{"name":"Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128693827","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

Development of a virtual instrument for data acquisition and analysis of the phonocardiogram 用于心音图数据采集与分析的虚拟仪器的研制

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.745939

Zhenyu Guo, C. Moulder, L. Durand, M. Loew

{"title":"Development of a virtual instrument for data acquisition and analysis of the phonocardiogram","authors":"Zhenyu Guo, C. Moulder, L. Durand, M. Loew","doi":"10.1109/IEMBS.1998.745939","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745939","url":null,"abstract":"A medical virtual instrument has been developed to acquire and analyze the phonocardiogram (PCG), the heart sound and murmur signal. This instrument consists of a Pentium 200 computer running Windows95, equipped with LabVIEW software and a plug-in data acquisition board, and a two-channel custom designed bio-signal preamplifier. The bio-signal preamplifier allows the data acquisition board to acquire both the PCG and the electrocardiogram (ECG). LabVIEW software modules have been developed to create virtual instrument's front panels for the following functions: to manage patient information and data files, to capture and display current ECG and heart sound signals while saving or analyzing previous acquired signals, to perform the spectral and time-frequency analysis of the heart sounds and murmurs, and to review the previous recordings. This instrument can be used to display the PCG and to analyze the individual heart sound and murmur for the detection of heart valve diseases. It can also be used to analyze the carotid bruit for the diagnosis of carotid artery stenosis. This study demonstrated that a LabVIEW-based medical virtual instrument provides a low-cost, reliable, and flexible solution for data acquisition and analysis of the PCG and carotid bruit.","PeriodicalId":156581,"journal":{"name":"Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128367548","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

Review of biomedical applications of computational intelligence 计算智能的生物医学应用综述

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.747067

Y. Shi, R. Eberhart

引用次数: 4

Diamond-like carbon coated medical guidewires 类金刚石碳涂层医用导丝

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.746086

J. McLaughline, H.-M.W. Hailu

引用次数: 1

Numerical estimation of skull and cortex boundaries from scalp geometry 基于头皮几何的颅骨和皮质边界的数值估计

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.747040

H. Haque, T. Musha, M. Nakajima

引用次数: 6

An uncoupled oscillator model of the Hoffmann reflex 霍夫曼反射的非耦合振荡器模型

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.746151

S. Dorgan, R. Reilly

引用次数: 4

Statistical and blind neural analyses of the expression of the metastasis-associated genes h-mts1 (S100A4) and Nm23 in carcinoma of the breast 乳腺癌转移相关基因h-mts1 (S100A4)和Nm23表达的统计学和盲神经分析

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286) Pub Date : 1998-10-29 DOI: 10.1109/IEMBS.1998.747151

R. Naguib, E. Albertazzi, F. Cajone, B. Leone, M. S. Lakshmi, G. Sherbet

{"title":"Statistical and blind neural analyses of the expression of the metastasis-associated genes h-mts1 (S100A4) and Nm23 in carcinoma of the breast","authors":"R. Naguib, E. Albertazzi, F. Cajone, B. Leone, M. S. Lakshmi, G. Sherbet","doi":"10.1109/IEMBS.1998.747151","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.747151","url":null,"abstract":"The murine 18A2/mts1 and its human homologue h-mts1 (S100A4) encoding a Ca/sup 2+/-binding protein belonging to the S-100 family have been previously shown to be associated with high invasive and metastatic potential of murine tumours, human tumour cell lines in vitro and of human tumours growth as xenografts. Nm23 is a putative metastasis suppressor gene whose expression has been found to correlate inversely with metastatic potential of some forms of human cancer. In view of the equivocal association of nm23 with the metastatic potential of human cancer, we suggested that the relative expression of h-mts1 and nm23 might reflect tumour progression more accurately than either of them alone. We show here that high h-mts1 expression is associated with metastatic spread to the regional lymph nodes. The expression of nm23 on its own did not show a statistically significant inverse correlation with nodal spread. However, the expression status of the two genes, taken together, correlated strongly with the occurrence of nodal metastases. The clinical data together with the state of expression of steroid receptors and the expression levels of h-mts1 and Nm23 genes were analysed using artificial neural networks for accuracy of prediction of nodal spread of the carcinomas.","PeriodicalId":156581,"journal":{"name":"Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129736327","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: 1