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Orthogonal polynomial trend analysis helps interpreting abnormalities in event-related brain potentials in high functioning autism 正交多项式趋势分析有助于解释高功能自闭症事件相关脑电位异常
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.579347
J. Stauder, J. C. Woestenburg, F. Hassainia, L. Mottron, P. Robaey
{"title":"Orthogonal polynomial trend analysis helps interpreting abnormalities in event-related brain potentials in high functioning autism","authors":"J. Stauder, J. C. Woestenburg, F. Hassainia, L. Mottron, P. Robaey","doi":"10.1109/IEMBS.1995.579347","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579347","url":null,"abstract":"Orthogonal polynomial trend analysis allows the extraction of event-related brain activity on basis of a few stimulus presentations enabling the study of time on task changes in event-related brain activity. The impact of this information on the interpretation of conventionally averaged event-related potentials is illustrated by comparing a high functioning autism group to matched controls.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"40 1","pages":"923-924 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90941752","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: 2
A real-time, interactive, 3-dimensional, computer graphic system for the study of one, two, and three degree-of-freedom joints in rotation 一种实时、交互式、三维的计算机图形系统，用于研究旋转中的一、二、三自由度关节
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.579691
Horng-Haur Liu, W. Buford, R. Patterson
{"title":"A real-time, interactive, 3-dimensional, computer graphic system for the study of one, two, and three degree-of-freedom joints in rotation","authors":"Horng-Haur Liu, W. Buford, R. Patterson","doi":"10.1109/IEMBS.1995.579691","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579691","url":null,"abstract":"A system is described which provides for the arbitrary placement of axes of motion with respect to 3-D anatomical (skeletal) structures. The system extends upon earlier work in the interactive, real-time, simulation of musculoskeletal kinematics. Developed in a UNIX RISC platform, the simulation uses PHIGS Extension to X windows (PEX) to define kinematics models and Motif widgets for control of modeling variables through mouse, control dial, and keyboard interaction. Skeletal structures are triangular shaded polygons developed from Computerized Tomography (CT) scans. Rotational axes of motion represented by long, narrow cylindrical vectors are arbitrarily placed and fixed with respect to skeletal landmarks. Subsequent motion of distal bone segments are then controlled, visualized, and studied for verification of joint congruence and realistic placement. This report describes the simulation applied to the three joints of the thumb (up to six degrees of freedom), the wrist, and the knee (two degrees of freedom each).","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"6 1","pages":"1299-1300 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91192849","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
A proposal of a model for the glomerular filtration 肾小球滤过模型的提出
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.579803
L. Roa, F. Garrachon, T. Gómez-Cía
{"title":"A proposal of a model for the glomerular filtration","authors":"L. Roa, F. Garrachon, T. Gómez-Cía","doi":"10.1109/IEMBS.1995.579803","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579803","url":null,"abstract":"A model of glomerular filtration has been developed, which aims to be of clinical application, easier to use and compute, and powerful. A new approach has been considered, assuming actual knowledge on the flow and filtration components and regulation. Its physiological bases and quantifications are shown.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"33 1","pages":"1513-1514 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87184037","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
Load sharing among muscles and dynamic relationship between multi-muscle EMGs and isometric joint moment 肌肉间负荷分担及多肌肌电图与关节力矩的动态关系
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.579663
Li-Qun Zhang, W. Rymer, G. Nuber
{"title":"Load sharing among muscles and dynamic relationship between multi-muscle EMGs and isometric joint moment","authors":"Li-Qun Zhang, W. Rymer, G. Nuber","doi":"10.1109/IEMBS.1995.579663","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579663","url":null,"abstract":"An in vivo and noninvasive technique was developed to determine the human elbow extension moment distribution among the 3 heads of the triceps and the anconeus muscles, and to model the relationship between the multi-muscle EMGs and the joint extension moment dynamically. The static M-wave and joint moment relationships for each head of the muscles was used to calibrate the EMG signals and determine load sharing during voluntary tasks. Results showed that the medial head triceps was the prime elbow extensor and the anconeus contributed significantly at low levels of the extension moment. Both load sharing and the model parameters varied with the joint extension moment. Contributions of the medial head triceps and anconeus decreased with the mean joint moment, while those of the lateral and long heads of triceps increased with it.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"118 1","pages":"1245-1246 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73454001","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
DefibSim: an interactive defibrillation device design tool defbsim:交互式除颤装置设计工具
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.575122
J. A. Schmidt, C.R. Johnson
{"title":"DefibSim: an interactive defibrillation device design tool","authors":"J. A. Schmidt, C.R. Johnson","doi":"10.1109/IEMBS.1995.575122","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575122","url":null,"abstract":"We have developed an interactive computer modeling tool (DefibSim) for defibrillation device design. This system allows researchers to interactively design and place electrodes within a large-scale thorax model and then compute the electric and potential fields using an adaptive finite element method. Both visual and quantitative measures have been developed to determine the efficacy of different electrode configurations. This tool has allowed us to quickly and efficiently investigate over 170 different electrode configurations. A promising subset of electrode locations are now being tested in animals as well as in clinical environments.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"29 1","pages":"305-306 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76689478","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: 16
Frequency-domain techniques for heart rate variability analysis 心率变异性分析的频域技术
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.579381
Xiangguo Yan, Chongxun Zheng
{"title":"Frequency-domain techniques for heart rate variability analysis","authors":"Xiangguo Yan, Chongxun Zheng","doi":"10.1109/IEMBS.1995.579381","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579381","url":null,"abstract":"Two frequency domain techniques, fast Fourier transform (FFT) and maximum entropy estimation (MEE) methods for analyzing Heart Rate Variability (HRV), are described. Analysis results showed that low frequency components (LF:0.04-0.15 Hz) reflecting sympathetic nervous activity occupy a dominant position on day time, high frequency components (HF:0.4-0.40 Hz) reflecting vagal nervous activity become stronger at night. There is a cluster of peaks ranging from 0.20-0.30 Hz at night. In the morning, LF/HF ratio trend graphics changed sharply. This may be quite significant for predicting sudden death of an intensive heart disease patient. Both analysis results have a high degree of positive correlation, and cross-correlation coefficient is more than 0.99. However, MEE has a higher frequency resolution than FFT.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"22 1","pages":"961-962 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76796925","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
Establishing predictive indicators of soft tissue status 建立软组织状态的预测指标
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.575294
S.L. Gigg, D. Bader
{"title":"Establishing predictive indicators of soft tissue status","authors":"S.L. Gigg, D. Bader","doi":"10.1109/IEMBS.1995.575294","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575294","url":null,"abstract":"This study investigates the effect of pressure and time on soft tissue status using measurements of transcutaneous gas tensions and the analysis of sweat metabolites of loaded sacral tissues. The tests were carried out on able-bodied subjects. Initial results show that there is an elevation in both lactate and urea in loaded tissues, which are associated with a decrease in oxygen tension are differences in the ratio of metabolites in loaded and unloaded tissue. The reperfusion of blood supply back into a loaded area of tissue was also apparent in the sweat analysis.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"13 1","pages":"649-650 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76803067","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
Introduction of a new coronary stent with enhanced radioopacity and hemocompatibility 引入一种新型冠状动脉支架，增强放射线不透明和血液相容性
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.575023
M. Amon, S. Winkler, K. Dekker, A. Bolz, C. Mittermayer, M. Schaldach
{"title":"Introduction of a new coronary stent with enhanced radioopacity and hemocompatibility","authors":"M. Amon, S. Winkler, K. Dekker, A. Bolz, C. Mittermayer, M. Schaldach","doi":"10.1109/IEMBS.1995.575023","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575023","url":null,"abstract":"Despite procedural progress, stenting therapy is still limited by subacute thrombosis, late restenosis as well as anticoagulant related bleeding complications. These limitations are attributed to the insufficient hemocompatibility of the implants as well as their poor X-ray visibility which impedes the control of the devices during angiography. Therefore a new cardiovascular stent is proposed showing a high radioopacity as well as a high hemocompatibility. This was realized by a hybrid design, consisting of a tantalum substrate and an amorphous silicon carbide coating, allowing a separate optimization of the stent body and the coating.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"99 1","pages":"107-108 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76866869","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: 6
3D motion analysis of MR imaging using optical flow method 用光流法分析磁共振成像的三维运动
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.575201
Siyi Huang, Shu-Tzu Wang, Jyh-Horng Chen
{"title":"3D motion analysis of MR imaging using optical flow method","authors":"Siyi Huang, Shu-Tzu Wang, Jyh-Horng Chen","doi":"10.1109/IEMBS.1995.575201","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575201","url":null,"abstract":"Optical flow is the velocity distribution of each pixel in an image. In this paper, the authors extend the 2D optical flow method to 3D optical flow analysis and also improve its performance around boundaries. Dynamic analysis of heart and knee is under investigation.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"1 1","pages":"463-464 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75051523","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: 2
Optimal operating point controller for total artificial heart 全人工心脏最佳工作点控制器
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society Pub Date : 1995-09-20 DOI: 10.1109/IEMBS.1995.575025
M. Yoshizawa, A. Tanaka, K. Abe, H. Takeda, T. Yambe, S. Nitta, Y. Abe, K. Imachi
{"title":"Optimal operating point controller for total artificial heart","authors":"M. Yoshizawa, A. Tanaka, K. Abe, H. Takeda, T. Yambe, S. Nitta, Y. Abe, K. Imachi","doi":"10.1109/IEMBS.1995.575025","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575025","url":null,"abstract":"In order to make an air-driven total artificial heart (TAR) implantable, the optimal operating point control method has been applied to the TAH controller. Because this method needs only the outflow rate of blood to regulate the stroke volume, it is not necessary to visually monitor the state of the sac in the implanted blood pump. Animal experiments have been carried out to evaluate the proposed controller by using an adult goat walking on a treadmill.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":"11 1","pages":"111-112 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75332844","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
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