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5页

Time course of increasing nonlinear properties of heart rate variability after heart transplantation 心脏移植后心率变异性非线性特性增加的时间过程

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.1998.745910

H. Dickhaus, C. Maier, L. Khadra, T. Maayah

引用次数: 0

Classification of MR and CT images using genetic algorithms 利用遗传算法对MR和CT图像进行分类

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.1998.747149

Z. Dokur, T. Olmez, E. Yazgan

引用次数: 9

A new spectro-temporal method for ECG morphology variability analysis 一种新的心电形态学变异性分析方法

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.1998.745845

J. Leski, E. Czogala, N. Henzel, P. Rozentryt

引用次数: 2

The blood cell counting and classification from stationary suspensions by laser light scattering method 用激光散射法对固定悬液进行血细胞计数和分类

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.1998.746964

Ye Yang, Zhen-xi Zhang, Xinhui Yang, D. Jiang

{"title":"The blood cell counting and classification from stationary suspensions by laser light scattering method","authors":"Ye Yang, Zhen-xi Zhang, Xinhui Yang, D. Jiang","doi":"10.1109/IEMBS.1998.746964","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.746964","url":null,"abstract":"In order to overcome the disadvantages caused by the flow principle used in automatic counting and classification of blood cells, a new method of counting and classification of blood cells is presented in this paper. This method is a laser light scattering method from stationary suspensions. The blood cell is simulated by an isotropic sphere, and Mie scattering theory is used to describe the scattering of blood cells. In order to get the size distribution of blood cells from their scattered light intensity distribution, the NNLS method combined with Powell method and precision punishment method are used. The dependence between blood cell concentration and its scattered light intensity is obtained from experiment. It is shown that there exists a linear relationship between them. By this new method, the size distribution of red blood cells and white blood cells are obtained, and the white blood cells can be classified as lymphocyte, middle-sized cells and neutrocyte.","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":"1 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":"122374553","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

The application of cross-correlation method in blood flow sonography 互相关法在血流超声检查中的应用

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.1998.746942

Shangkai Gao, Guofu Xu, Shigao Chen, Lepeng Zeng

{"title":"The application of cross-correlation method in blood flow sonography","authors":"Shangkai Gao, Guofu Xu, Shigao Chen, Lepeng Zeng","doi":"10.1109/IEMBS.1998.746942","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.746942","url":null,"abstract":"The conventional Pulsed Wave (PW) Doppler blood flow analyzers with the sonogram display are widely used in clinical diagnosis. However, the system suffers from spectrum aliasing problems when the velocities exceed the Nyquist limit. Time domain Cross-Correlation (CC) method is superior to PW in the high velocity measurements. But, instead of the sonogram, the CC method can only provide the average velocity in the sample volume. Combining the PW with the CC method, the authors propose a joint CC-PW method which takes advantage of the sonogram output, but overcomes the aliasing problems. With this new method, the delay times of the received RF echoes from pulse-to-pulse are estimated by the CC method. The series of delay time with the related maximum value in cross-correlation function are then used to form a time sequence, which is finally sent to a spectrum analyzer to produce the sonogram. The principle of the method is described in detail and experimental results are given in the paper.","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":"133 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":"122769140","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

Highly accurate demodulation method of an IPFM model with an absolute refractory period 绝对不应期IPFM模型的高精度解调方法

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.1998.745913

Y. Noguchi, T. Hamada, T. Kawamura, F. Matsumoto, S. Sugimoto

{"title":"Highly accurate demodulation method of an IPFM model with an absolute refractory period","authors":"Y. Noguchi, T. Hamada, T. Kawamura, F. Matsumoto, S. Sugimoto","doi":"10.1109/IEMBS.1998.745913","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745913","url":null,"abstract":"An integral pulse frequency modulation (IPFM) model is a pulse generation mechanism model for the nervous systems and is one of the models which connects heart rate variability to autonomic nervous system activity. There is a refractory period just after a heart beat impulse occurs, in which no heart beat impulses occur at any rate. The IPFM model does not take the refractory period into account. It would be good to consider the refractory periods in order to make the IPFM model realistic. In this paper, we are examining the effects of the absolute refractory period on the spectral distortion properties and the demodulation accuracy. Spurious components, (which are caused by mutual interference among the frequency components), decreased as the absolute refractory period increased, while the side-band distortion around the input frequency components increased. The direct FFT method impairs demodulation accuracy as the absolute refractory period increases. Even the integral function (IF) method without taking the absolute refractory period into account can reduce the distortion that is peculiar to the absolute refractory period. Moreover, the IF method which took the absolute refractory period into account has higher demodulation accuracy in spite of the absolute refractory period.","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":"9 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":"122916225","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

Hybrid fuzzy-neural committee networks for recognition of swallow acceleration signals 混合模糊-神经委员会网络识别吞咽加速度信号

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.1998.747136

N. P. Reddy, A. Das, D. Simcox

引用次数: 7

Segmentation of ultrasonic ovarian images by texture features 基于纹理特征的超声卵巢图像分割

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.1998.745570

Ching-Fen Jiang, Mu-Long Chen

引用次数: 10

Generalized algorithm of detection and classification in uterine electromyography signal 子宫肌电信号检测与分类的广义算法

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.1998.745171

M. Khalil, J. Duchêne, C. Marque

引用次数: 0

Retinal blood vessel detection and tracking by matched Gaussian and Kalman filters 高斯滤波与卡尔曼滤波相匹配的视网膜血管检测与跟踪

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.1998.746160

O. Chutatape, Liu Zheng, S. Krishnan

引用次数: 274