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1993 IEEE Annual Northeast Bioengineering Conference最新文献

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Detection of statistically significant differences in cat jaw muscle movement using the EMG linear envelope 使用肌电线性包络检测猫颚肌运动的统计学显著差异
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404441
E. Ciaccio, S. Weiner, S. S. Reisman, Stanley M. Dunn, Metin Akay
{"title":"Detection of statistically significant differences in cat jaw muscle movement using the EMG linear envelope","authors":"E. Ciaccio, S. Weiner, S. S. Reisman, Stanley M. Dunn, Metin Akay","doi":"10.1109/NEBC.1993.404441","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404441","url":null,"abstract":"A study of jaw movement in the cat using experimental protocols to elicit biting and hissing responses is discussed. The EMG was recorded and its morphology was characterized by employing preprocessing and pattern analysis techniques for feature extraction. Time series electromyographic (EMG) episodes were conditioned by reduction to 40 representative sample points (approximating the EMG linear envelope), aligning, and taking the Karhuenen-Loeve expansion. To test the hypothesis that biting and hissing responses were reproducible, and yet statistically different from each other, the F test was used to determine the significance of differences in standard deviation of the KLE eigenvectors. It was found that jaw movement was significantly different for biting versus hissing protocols.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114959967","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
The thermal model of the rat under hemorrhagic shock hypothermia with microwave intervention 微波干预失血性休克低温大鼠热模型的建立
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404375
Z. Liu, P. Engler, D. Kristol
{"title":"The thermal model of the rat under hemorrhagic shock hypothermia with microwave intervention","authors":"Z. Liu, P. Engler, D. Kristol","doi":"10.1109/NEBC.1993.404375","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404375","url":null,"abstract":"A whole body thermal model simulating heat distribution and temperature regulation in rats during hemorrhagic shock and during post-shock microwave core rewarming period was developed. An electrical circuit was used to simulate the thermal system and PSpice was used to analyze the circuit. The blood pressure drop and cardiac output decrease were considered in the simulation, and the set point temperature was investigated in the model. Linear decrease and increase of the set point temperature were assumed during the simulation of the shock period and the post-shock rewarming period, respectively. General agreement between the simulation result and experimental data was obtained.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124012571","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
Frequency response of a blood pressure pulse to small change in the waveform's time constant 血压脉冲对波形时间常数微小变化的频率响应
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404387
A. Chatterjea, E. Claussen
{"title":"Frequency response of a blood pressure pulse to small change in the waveform's time constant","authors":"A. Chatterjea, E. Claussen","doi":"10.1109/NEBC.1993.404387","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404387","url":null,"abstract":"The authors investigate how the magnitude of the frequency response of a blood pressure pulse decreases in one of the waveform's time constant. The amplitude of the first ten harmonics, especially, is addressed. Graphical representations of the investigation are included. The magnitude of the derivatives of the harmonics' amplitude with respect to the time constant of the ascending part of the waveform is plotted.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124738554","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
An improved design of a noninvasive near-infrared brain oxygenation monitor 一种改进的无创近红外脑氧合监测仪设计
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404428
L. Pan, D. Amory, J.K. Li, E. Kalatzis-Manolakis
{"title":"An improved design of a noninvasive near-infrared brain oxygenation monitor","authors":"L. Pan, D. Amory, J.K. Li, E. Kalatzis-Manolakis","doi":"10.1109/NEBC.1993.404428","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404428","url":null,"abstract":"Noninvasive determination of oxygen delivery to the brain was obtained by using a newly designed three wavelength optical system, which consists of low power laser diodes and photo detectors. Using this near-infrared spectroscopy (NIRS) system, the authors investigated the relationship between directly measured jugular venous O/sub 2/ saturation (S/sub j/O/sub 2/) and regional cerebral O/sub 2/ saturation (rSHbO/sub 2/) as determined by NIRS. Results from ten cardiac surgical patients show good quantitative correlations.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128405344","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
Development of a UMDNJ 3-D computergraphic system for clinical follow-up of anatomic surfaces 用于解剖表面临床随访的UMDNJ三维计算机系统的开发
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404384
A. Dastane, T. Vaidyanathan, J. Vaidyanathan, R. Hesby
{"title":"Development of a UMDNJ 3-D computergraphic system for clinical follow-up of anatomic surfaces","authors":"A. Dastane, T. Vaidyanathan, J. Vaidyanathan, R. Hesby","doi":"10.1109/NEBC.1993.404384","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404384","url":null,"abstract":"A computergraphic method is developed to follow changes in anatomic surfaces of dental tissues. The hardware and software systems used for data acquisition, processing and display are described together with selected application cases to demonstrate the power and the capabilities of the system.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130106360","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
Variable frequency stimulation of latissimus dorsi muscle for cardiomyoplasty 可变频率刺激背阔肌用于心肌成形术
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404377
T. Delosso, D. T. George, M.P. Cruz, J. Shea, S. Binder-Macleod, W. Santamore
{"title":"Variable frequency stimulation of latissimus dorsi muscle for cardiomyoplasty","authors":"T. Delosso, D. T. George, M.P. Cruz, J. Shea, S. Binder-Macleod, W. Santamore","doi":"10.1109/NEBC.1993.404377","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404377","url":null,"abstract":"Using a specially designed testing system, the authors measured the contractile performance of canine LDM (latissimus dorsi muscle) during stimulation with the cardiomyoplasty-standard constant frequency pulse train (CFT) and alternative variable-frequency trains (VFTs). In the nonfatigued state, VFTs generated greater force, shortening, work, and power compared with the cardiomyoplasty-standard CFT. After repeated contractions caused muscle fatigue, VFT stimulation elicited even greater comparative performance. VFT stimulation may prove useful in the functional electrical stimulation of the latissimus dorsi muscle for cardiomyoplasty.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129140958","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
Development of electrosurgery. I: A historical perspective 电外科的发展。I:历史的视角
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404426
J. Lacourse, A. Rothwell, S. Selikowitz
{"title":"Development of electrosurgery. I: A historical perspective","authors":"J. Lacourse, A. Rothwell, S. Selikowitz","doi":"10.1109/NEBC.1993.404426","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404426","url":null,"abstract":"For pt. II, see ibid., p. 37-9 (1993). A history of the development of electrosurgery is presented to prepare the reader for pt. II which investigates the voltage-current characteristics of an AC arc with application to electrosurgery.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"37 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132202628","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
Noninvasive monitoring of autonomic cardiovascular control during stress 应激状态下自主心血管控制的无创监测
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404361
R.L.-C. Pan, Baozhi Chen, J. Li
{"title":"Noninvasive monitoring of autonomic cardiovascular control during stress","authors":"R.L.-C. Pan, Baozhi Chen, J. Li","doi":"10.1109/NEBC.1993.404361","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404361","url":null,"abstract":"The authors examined noninvasively the autonomic cardiovascular control during Valsalva maneuver. In order to assess the extent of the control, heart rate (HR), T-wave amplitude (TWA), pulse transit time (PTT), and finger pulse volume (FPV) were monitored continuously through a PC-based computer system. Results show that Valsalva maneuver can be used as a noninvasive means of manipulating autonomic effects on the heart and blood vessels and that the system is effective for monitoring these effects.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130820645","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
Robotic force feedback control and teleoperation 机器人力反馈控制与遥操作
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404395
D. Repperger, C. Phillips, T. Chelette
{"title":"Robotic force feedback control and teleoperation","authors":"D. Repperger, C. Phillips, T. Chelette","doi":"10.1109/NEBC.1993.404395","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404395","url":null,"abstract":"A teleoperation system is analyzed using principles from robotics. Dynamic properties of a human's response are incorporated to determine which type of strategies, force or position control, yield optimum performance in terms of the minimum time to acquire a target. This study has applicability to the design of force reflective assistive aids for the handicapped.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128996108","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
Information entropy and dimension calculation on heart rate variability 心率变异性的信息熵与维数计算
1993 IEEE Annual Northeast Bioengineering Conference Pub Date : 1993-03-18 DOI: 10.1109/NEBC.1993.404438
P.Z. Zhang, S. Reisman, W. Tapp, D. Cordero
{"title":"Information entropy and dimension calculation on heart rate variability","authors":"P.Z. Zhang, S. Reisman, W. Tapp, D. Cordero","doi":"10.1109/NEBC.1993.404438","DOIUrl":"https://doi.org/10.1109/NEBC.1993.404438","url":null,"abstract":"An approach to construct the probability density curve (PDC) of a phase response curve (PRC), in which the PRC reflects directly heart rate fluctuations by phase shifts during different vagal stimuli, is presented. It was found that the width of the PDC usually represents the amount of heart rate variation. The narrow PDC with high peaks implies less heart rate variability, while the wide and flat PDC implies high heart rate variability. Based on the PDC, information entropy has been calculated. Information entropy can give the amount of information needed to specify the state of the PRC or the state of the heart rate variability to an accuracy of the box size. Current work has indicated that large information entropy means large heart rate variability and less predictability. On the other hand, information dimension has been derived from information entropies of the different box sizes. Information dimension is an index of the complexity of a system that generated the data. A low dimension means that less states are needed to describe the system while a large dimension means more states are required to describe the system.<<ETX>>","PeriodicalId":159783,"journal":{"name":"1993 IEEE Annual Northeast Bioengineering Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128860677","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
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