Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)最新文献_第3页

Biomechanics of dental implant-a photoelastic evaluation 牙种植体的生物力学-光弹性评价

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756518

A. Kishen, S. Radhakrishnan

引用次数: 0

An approach to estimating performance capacity envelopes: knee extensor system example 一种评估性能包络的方法:膝关节伸肌系统的例子

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757052

P. J. Vasta, G. Kondraske

{"title":"An approach to estimating performance capacity envelopes: knee extensor system example","authors":"P. J. Vasta, G. Kondraske","doi":"10.1109/IEMBS.1997.757052","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.757052","url":null,"abstract":"Develops and evaluates an approach to modeling multi-dimensional (strength, joint angle and speed) performance capacity envelopes that more completely characterize specific human musculoskeletal subsystems (e.g. trunk extensor and wrist extensor). This is a logical extension to the typical 2D families of curves produced by isokinetic measures, which provide only limited utility. Isometric and newly modified isokinetic protocols were used to obtain a parametric data set for each of the 21 (male and female) volunteers, using the knee extensor as a representative subsystem for the approach. The functional form of a normalized 3D performance capacity envelope representing the general population was determined using statistical analysis of the subject data. A limited subset of each subject's data was used in combination with the general population model to derive higher-fidelity subject-specific models. The estimated knee extensor torque capacity of each model was compared to the measured torque values. The approach provided torque capacity estimates that were comparable to the test-retest accuracy.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126035827","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

In vitro determination of bilirubin in hemolysed whole blood using first derivative analysis 一阶导数法测定溶血全血中胆红素含量

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756798

J. Zheng, P. W. Cheung

引用次数: 4

Biomechanical effect of walker structure changes on ambulation: implications for rehabilitation 助行器结构改变对行走的生物力学影响:对康复的影响

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757064

G. W. Hambrook, G. Simoneau, G. Harris, R.A. Bauchschmidt

引用次数: 0

Time domain based algorithm for detection of ventricular fibrillation 基于时域的心室颤动检测算法

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.754554

Lijun Tian, Willis, Tompkins

引用次数: 21

EMG-based motion intention detection for control of a shoulder neuroprosthesis 基于肌电图的肩部神经假体控制运动意图检测

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.758719

R. Kirsch, Alain Au

引用次数: 13

Use of artificial neural networks in the analysis of trabecular bone on digitized radiographs 人工神经网络在数字化x线片小梁骨分析中的应用

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756624

M. Chinander, M. Giger, J. Martell, M. Favus

{"title":"Use of artificial neural networks in the analysis of trabecular bone on digitized radiographs","authors":"M. Chinander, M. Giger, J. Martell, M. Favus","doi":"10.1109/IEMBS.1997.756624","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.756624","url":null,"abstract":"Bone architecture is an important factor that determines bone strength in addition to bone mass. Yet it is only bone mass that is measured in bone mineral densitometry (BMD), which is the most common, clinically used method to assess bone strength. Texture analysis of the trabecular bone pattern on radiographs is being investigated as a potential means to characterize the bone architecture. In this study the authors examined the use of an artificial neural network to merge several texture measures to obtain a single measure related to bone strength. The texture analyses were performed on digitised radiographs of excised femoral necks. Compressive strength measurements of the specimens were used in the training of the ANN. Receiver operating characteristic (ROC) analysis was used to measure the performance of the ANN in distinguishing between strong and weak bone. With direct exposure radiographs, the ANN achieved an area under the ROC curve (A/sub Z/) of 0.98/spl plusmn/0.05 in consistency testing and 0.83/spl plusmn/0.08 in round-robin analysis. In comparison, BMD measurements on the specimens yielded an A/sub z/ value of 0.72/spl plusmn/0.11. These results indicate that the texture analysis of trabecular bone pattern on radiographs, merged with the use of an ANN, may be a useful method to noninvasively assess bone strength.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125469829","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

Effect of conductivity uncertainties on EEG source localization using a 2D finite element model 基于二维有限元模型的电导率不确定性对脑电图源定位的影响

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.758772

K. Awada, S. Baumann, D. Jackson

引用次数: 1

Neural network modeling of memory gradient in Alzheimer's disease 阿尔茨海默病记忆梯度的神经网络建模

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.756631

J. Hamilton, E. Micheli-Tzanakou

{"title":"Neural network modeling of memory gradient in Alzheimer's disease","authors":"J. Hamilton, E. Micheli-Tzanakou","doi":"10.1109/IEMBS.1997.756631","DOIUrl":"https://doi.org/10.1109/IEMBS.1997.756631","url":null,"abstract":"Several studies have documented a temporal gradient in the memory of persons with Alzheimer's disease: patients are better able to recall more distant memories. The significance of this gradient is unclear: does the disease selectively interfere with the recall of recent memories, or does it prevent the memories from being adequately recorded? To address this question, neural networks were used to simulate learning over time. Once trained with a group of patterns, the networks were damaged to simulate the lesions associated with Alzheimer's disease. By altering the number of times a network was trained with a given pattern before additional patterns were added, and by varying the number of patterns in the training set, the direction of the temporal gradient was changed. The factors that determine the direction of the gradient are in place before the network is damaged. This suggests that the gradient associated with Alzheimer's disease is not a direct result of brain lesions that are hallmarks of the disease, but instead develops from an alteration of the learning process that begins long before dementia develops.","PeriodicalId":342750,"journal":{"name":"Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126965186","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

Dye-enhanced multispectral transillumination for breast cancer detection: feasibility measurements 染料增强多光谱透照用于乳腺癌检测:可行性测量

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-10-30 DOI: 10.1109/IEMBS.1997.757721

M. Braunstein, R. Chan, R. Levine

引用次数: 3