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8页

Fast automated segmentation and visualisation methods for MR images of the knee joint in arthritis 关节炎膝关节MR图像的快速自动分割和可视化方法

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.1998.745456

R. Kitney, P. Cashman, M. E. Carter

{"title":"Fast automated segmentation and visualisation methods for MR images of the knee joint in arthritis","authors":"R. Kitney, P. Cashman, M. E. Carter","doi":"10.1109/IEMBS.1998.745456","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745456","url":null,"abstract":"To highlight the diagnostic information in MR slice images of early knee joint damage, due to osteoarthritis (OA) or trauma, we have developed techniques for automated segmentation and rendering of the major joint structures. Using a 1.5 T GE body scanner we obtained sagittal T1-weighted spin echo images from 4 volunteers and 2 patients with OA. Segmentation was performed using MIDAS (Medical Information Display and Analysis System: Imperial College). From seed points on a midline \"training\" slice, the program searched all slices, locating the boundaries of the femur, tibia, patella, menisci and cruciate ligaments. The overall process was many times faster than manual segmentation. The joint components were then rendered as a composite 3D object allowing \"virtual dissection\" by the user. Osteophytes and soft-tissue abnormalities were revealed, viewable from any angle. The authors are now using newer MR sequences to detect the articular cartilage so that this can be added to the 3D model to indicate damage from OA. They believe that refinement of these techniques will enable visualisation of early changes to the joint structures, proving clinically useful in diagnosis and management of OA.","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":"6 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":"123661654","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: 8

Application of the Kalman filter in cardiac arrhythmia detection 卡尔曼滤波在心律失常检测中的应用

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.1998.745834

L. Szilágyi

引用次数: 10

A time-frequency analysis of the EEG evoked by negative and positive visual stimuli 消极和积极视觉刺激诱发脑电图的时频分析

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.1998.746999

Chang-Su Ryu, Yoonseon Song, Sang Hee Kim, I. Yi, Ji-Eun Kim, J. Sohn

引用次数: 9

A method for improving the measurement data resolution of time-resolved spectroscopy (TRS) using adaptive pulse compression filter 提出了一种利用自适应脉冲压缩滤波器提高时间分辨光谱(TRS)测量数据分辨率的方法

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.1998.745616

S. Chang, Lin Fang, D. Haishu, B. Chance

引用次数: 3

A numerical analysis of continuous glucose monitoring method using a microdialysis technique 微透析连续血糖监测方法的数值分析

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.1998.746930

O. Koseki, T. Tamura, T. Sumino, M. Ogawa, T. Togawa, K. Tsuchiya

{"title":"A numerical analysis of continuous glucose monitoring method using a microdialysis technique","authors":"O. Koseki, T. Tamura, T. Sumino, M. Ogawa, T. Togawa, K. Tsuchiya","doi":"10.1109/IEMBS.1998.746930","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.746930","url":null,"abstract":"Monitoring of subcutaneous tissue glucose concentration is an attractive tool to detect a continuous glucose concentration, and has been studied by several researchers. We have proposed a new method, which can measure the concentration of subcutaneous tissue continuously, even when the recovery rate and the biosensor output current decreased. Two reference solutions were prepared with concentrations above and below the object concentration. These were perfused alternately with the same ratio of two periods. The output detected at the sensor, multiplied by the constant gain, was provided as feedback to the ratio. The glucose concentration in the subcutaneous tissue was calculated using the ratio of the two perfusion periods. To analyze the diffusion between the microdialysis probe and subcutaneous tissue, a compartment model was established. The numerical study was performed with a compartment model and control theory. In the simulation, the 90% response time to step change was about 7 min, which is fast enough when compared with the sharp fluctuations of a blood glucose level. This result suggested that our method was effective.","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":"29 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":"121419038","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

Microwave and ELF electromagnetic field effects on intercellular communication 微波和极低频电磁场对细胞间通讯的影响

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.1998.746064

H. Chiang

引用次数: 1

Fully automated biosignal acquisition in daily routine through 1 month 在1个月内实现日常生物信号的全自动采集

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.1998.746981

M. Ogawa, T. Tamura, T. Togawa

{"title":"Fully automated biosignal acquisition in daily routine through 1 month","authors":"M. Ogawa, T. Tamura, T. Togawa","doi":"10.1109/IEMBS.1998.746981","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.746981","url":null,"abstract":"With the goal of keeping people healthy and active, long-term at-home measurement of physiological function during daily life is valuable, and is attempted in this study. As a first trial of at-home measurements, a fully automated physiological data acquisition system was developed. This system contains unconstrained physiological parameter monitors: an ECG monitor for use during bathing, a bed temperature monitor, and a weight monitor located in the toilet seat. It also contains a computer with data acquisition programs and a data format rule. Unconstrained physiological parameter monitors and fully automatic measurement procedures provide data acquisition non-invasively and without the subject's awareness. This system has been proved by an experiment involving measurement over one month of a healthy male subject (aged 29 years) in laboratory-based facilities. The system functioned for one month of data acquisition with no operator involved. The system may be used for home health monitoring of patients and also of healthy subjects.","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":"62 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":"114329180","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: 41

Experimental tests of a musculoskeletal model of the elbow joint for FES applications 用于FES应用的肘关节肌肉骨骼模型的实验测试

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.1998.744988

Takashi Watanabe, T. Nozawa, G. Eom, S. Ohba, R. Futami, N. Hoshimiya, Y. Handa

引用次数: 1

A fast algorithm for estimating FDG model parameters in dynamic PET with an optimised image sampling schedule and corrections for cerebral blood volume and partial volume 动态PET中FDG模型参数的快速估计算法，具有优化的图像采样计划和脑血容量和部分体积的校正

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.1998.745541

Weidong (Tom) Cai, D. Feng, R. Fulton

{"title":"A fast algorithm for estimating FDG model parameters in dynamic PET with an optimised image sampling schedule and corrections for cerebral blood volume and partial volume","authors":"Weidong (Tom) Cai, D. Feng, R. Fulton","doi":"10.1109/IEMBS.1998.745541","DOIUrl":"https://doi.org/10.1109/IEMBS.1998.745541","url":null,"abstract":"The generalized linear least squares (GLLS) method for parameter estimation of nonuniformly sampled biomedical systems is a computationally efficient and statistically reliable way to generate parametric images for tracer dynamic studies with positron emission tomography (PET). However, previous work on GLLS in FDG-PET has been mainly based on a conventional sampling schedule (CSS) with twenty or more dynamic image frames, and with a standard four-parameter model which ignores the effects of cerebral blood volume (CBV) and partial volume (PV) on the tissue uptake measurements. In order to reduce image storage requirements and obtain more reliable parameter estimates, the authors derived a new OISS5-GLLS algorithm based on an optimal image sampling schedule involving a much smaller number of image frames with a five-parameter FDG model for correcting CBV and PV error effects, and validated this algorithm through computer simulations and clinical FDG-PET studies. The results showed that the OISS5-GLLS could provide reliable parameter estimates in dynamic FDG-PET studies, while greatly reducing computational complexity and image storage requirements.","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":"7 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":"121675059","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

A heart sound feature extraction algorithm based on wavelet decomposition and reconstruction 一种基于小波分解与重构的心音特征提取算法

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.1998.747181

Huiying Liang, Iiro Hartimo

引用次数: 55