[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems最新文献_第4页

Design and realization of high speed single exposure dual energy image processing 高速单曝光双能量图像处理的设计与实现

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244966

M. Bentum, Robert G. J. Arendsen, C. Slump, C. Mistretta, W. Peppler, F. Zink

引用次数: 6

Digital signal processor-based feature extraction vocoder for the deaf 基于数字信号处理器的聋人特征提取声码器

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.245008

E. Miskiel, Ö. Özdamar, D. Oller, R. Eilers

引用次数: 1

A transputer-based EMG-system with integrated knowledge-base for diagnostic-support 基于转运体的肌电图系统，集成了诊断支持知识库

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244929

G. Rom, G. Jöchtl, G. Pfurtscheller

引用次数: 2

An electrohydraulic totally implantable artificial heart with a motor-integrated regenerative pump and its computer control 一种带有电机集成再生泵及计算机控制的电液全植入式人工心脏

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.245035

T. Masuzawa, Y. Taenaka, M. Kinoshita, T. Nakatani, H. Takano, Y. Fukui

{"title":"An electrohydraulic totally implantable artificial heart with a motor-integrated regenerative pump and its computer control","authors":"T. Masuzawa, Y. Taenaka, M. Kinoshita, T. Nakatani, H. Takano, Y. Fukui","doi":"10.1109/CBMS.1992.245035","DOIUrl":"https://doi.org/10.1109/CBMS.1992.245035","url":null,"abstract":"An electrohydraulic totally implantable artificial heart which has a motor-integrated regenerative pump was developed. The system consists of left and right diaphragm-type blood pumps which are implanted in the thorax with a separately placed electrohydraulic actuator in the abdominal region. The blood pump was designed to have an appropriate anatomical fitting in a human thorax. The actuator is a regenerative pump which is able to pump fluid against a high head. The height, diameter, and weight of the actuator are 32.5 mm, 73 mm, and 350 g, respectively. The rotor-magnet of the brushless DC motor is embedded in the impeller of the regenerative pump in order to miniaturize the actuator and increase durability by reducing the number of moving parts. A 32-b microcomputer controls the motor of the actuator. The detection algorithm of the pumping condition was developed by using the TMSTR (time-sequential multiple-state transition representation) linguistic technique to control the artificial heart correctly and safely. The feasibility of the devices was confirmed by in vivo and in vitro experiments.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134411581","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: 4

Physiologic factor analysis (PFA) and parametric imaging of dynamic PET images 生理因素分析(PFA)和动态PET图像的参数化成像

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244968

W. Geckle, Z. Szabo

{"title":"Physiologic factor analysis (PFA) and parametric imaging of dynamic PET images","authors":"W. Geckle, Z. Szabo","doi":"10.1109/CBMS.1992.244968","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244968","url":null,"abstract":"Physiologic factor analysis (PFA) has been applied to a set of dynamic positron emission tomography (PET)-generated images to extract fundamental, kinetic functions useful in compartmental modeling of PET data. The study was conducted to investigate PFA as a means of improving compartment models of tracer kinetics for the estimation of neuroreceptor binding characteristics from dynamic PET data. PFA derived factors avoid the problem of overlapping tissue types in compartmental estimates and also avoid errors in operator definition of regions of interest, since PFA is an automated method. Three factors were estimated: the first factor was identified as a sample of the free tracer in tissue compartment and accounted for a mean contribution of 41% to the total factor representation of the data; the second factor was identified as bound radioligand with a 33% mean contribution; and the third was identified as free tracer in blood with a 26% mean contribution. The PFA results obtained from the 14 human PET studies were compared to published results from animal studies using the same radioligand but where tissue samples were analyzed for radioactivity. The time-dependent behavior of compartmental activity in the two cases was similar.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130360930","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

Adaptive pulse rate scheduling for reduced dose X-ray cardiac interventional fluoroscopic procedures 低剂量x线心脏介入透视程序的自适应脉搏率调度

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.245023

A. Abdel-Malek, J. Bloomer, F. Yassa

{"title":"Adaptive pulse rate scheduling for reduced dose X-ray cardiac interventional fluoroscopic procedures","authors":"A. Abdel-Malek, J. Bloomer, F. Yassa","doi":"10.1109/CBMS.1992.245023","DOIUrl":"https://doi.org/10.1109/CBMS.1992.245023","url":null,"abstract":"Presents an approach for reducing X-ray absorbed dose during cardiac fluoroscopic interventional procedures. The approach hinges on two main concepts: (1) adapting the X-ray pulse rate to the activity of the organ under investigation (the heart); and (2) maintaining the appearance of a 30-frame/s display rate to the viewer. The first concept was accomplished through the processing of multiple sensor information to determine the onset of the various phases of ventricular motion within the cardiac cycle. For each detected phase of the cardiac cycle, a specific tube pulse rate is assigned or automatically determined (after a learning period) such that high activity phases will have higher tube rate than phases with low activity. In order to maintain a 30-frame/s display rate to the viewer, a last-frame-hold approach was used and the resultant sequence shows minimal jerkiness artifacts as a result of the adaptive-motion-dependent sampling strategy. Preliminary results of the proposed system indicate the possibility of a three-to-one reduction of the tube pulse-rate. This translates to a dose reduction of a similar ratio.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127428523","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

The extraction of the best SGLD texture features in the ultrasound B-scan images of cancered stomach coats 胃癌胃粘膜b超图像中最佳SGLD纹理特征的提取

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244958

Mengyang Liao, Xinliang Li, Jiamei Qin, Sixian Wang

引用次数: 0

Analyzing information content of MR images 分析MR图像的信息含量

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244944

N. Tavakoli

引用次数: 3

Texture classification and segmentation using simultaneous autoregressive random model 基于同步自回归随机模型的纹理分类与分割

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244923

Mengyang Liao, Jiamei Qin, Y. Tan

引用次数: 6

Minimum square-deviation tomographic reconstruction from few projections 基于少量投影的最小平方偏差层析重建

[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1992-06-14 DOI: 10.1109/CBMS.1992.244948

S. Dharanipragada, K. Arun

引用次数: 1