2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)最新文献_第9页

Gaussian Bayes classifier for medical diagnosis and grading: Application to diabetic retinopathy 医学诊断与分级的高斯贝叶斯分类器:在糖尿病视网膜病变中的应用

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742198

A. Hani, H. A. Nugroho, H. Nugroho

{"title":"Gaussian Bayes classifier for medical diagnosis and grading: Application to diabetic retinopathy","authors":"A. Hani, H. A. Nugroho, H. Nugroho","doi":"10.1109/IECBES.2010.5742198","DOIUrl":"https://doi.org/10.1109/IECBES.2010.5742198","url":null,"abstract":"Data from medical imaging system need to be analysed for diagnostics and clinical purposes. In a computerized system, the analysis normally involves classification process to determine disease and its condition. In an earlier work based on a database of 315 fundus images (FINDeRS), it is found that the foveal avascular zone (FAZ) enlargement strongly correlates with diabetic retinopathy (DR) progression having a correlation factor up to 0.883 at significant levels better than 0.01. However, it is also found that the FAZ areas can belong to different DR severity but with different levels of certainty having a Gaussian distribution. In this research work, the suitability of the Gaussian Bayes classifier in determining DR severity level is investigated. A v-fold cross-validation (VFCF) process is applied to the FINDeRS database to evaluate the performance of the classifier. It is shown that the classifier achieved sensitivity of >84%, specificity of >97% and accuracy of >95% for all DR stages. At high values of sensitivity (>95%), specificity (>97%) and accuracy (>98%) obtained for No DR and Severe NPDR/PDR stages, the Gaussian Bayes classifier is suitable as part of a computerised DR grading and monitoring system for early detection of DR and for effective treatment of severe cases.","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116106660","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: 20

Detection of uterine fibroids using wavelet packet features with BPNN classifier 基于BPNN分类器的小波包特征检测子宫肌瘤

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742271

N. Sriraam, D. Nithyashri, L. Vinodashri, P. Niranjan

{"title":"Detection of uterine fibroids using wavelet packet features with BPNN classifier","authors":"N. Sriraam, D. Nithyashri, L. Vinodashri, P. Niranjan","doi":"10.1109/IECBES.2010.5742271","DOIUrl":"https://doi.org/10.1109/IECBES.2010.5742271","url":null,"abstract":"Uterine fibroids also referred as leiomymas are the most common tumors persist within the wall of the female genital tract. This abnormality is predominant among woman of childbearing age where the secretion of estrogen hormone is significant. The most crucial factor is that the presence of fibroid can cause infertility and repeated miscarriage. In the recent years, ultrasonic imaging found to be an appropriate tool for diagnosis of uterus related disorders. This paper presents an automated detection of uterine fibroid by using wavelet features and a neural network classifier. Based on user-defined ROI, a three level wavelet packet decomposition is applied to calculate the vertical and horizontal coefficients. In order to distinguish the normal and fibroid uterus images, a feed forward backpropogation neural network(BPNN) classifier is used and the performance are evaluated in terms of sensitivity, specificity and classification accuracy. It is observed from the experimental study that a classification accuracy of 95.1% is achieved which indicates the suitability of the proposed scheme for clinical evaluation","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116215984","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: 10

Multi-parameter sensitivity analysis for guided needle insertion through soft tissue 软组织引导针插入的多参数敏感性分析

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742207

Arash Maghsoudi, M. Jahed

引用次数: 8

Biomechanical effects of short construct spine posterior fixation, in thoracolumbar region with L1 burst fracture 胸腰椎L1爆裂性骨折短结构脊柱后路固定的生物力学效应

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742280

M. Alizadeh, M. A. Abdul Kadir, Saturnino Saldanha

{"title":"Biomechanical effects of short construct spine posterior fixation, in thoracolumbar region with L1 burst fracture","authors":"M. Alizadeh, M. A. Abdul Kadir, Saturnino Saldanha","doi":"10.1109/IECBES.2010.5742280","DOIUrl":"https://doi.org/10.1109/IECBES.2010.5742280","url":null,"abstract":"One of the most common spinal fractures is thoracolumbar spine fracture and in this area burst fracture contributed approximately 10%–20% of such spinal problems [1–5]. The purpose of this study is to investigate biomechanical effects of anterior decompression and posterior instrumentation and evaluate the role of short-segment pedicle screw instrument in order to preservation of adequate spine stability as well as appropriate spinal segment motion. Finite element model of the spinal segments T11 to L3 was developed to simulate burst fracture of L1 and analyse stabilization method using spinal fusion by cage and bone graft, pedicle screws and short rods for thoracolumbar spine. Computed tomography image datasets were obtained from a local hospital and three dimensional model of the region of interest were developed through manual segmentation. Rods and screws for the construct were modeled in three dimensions with appropriate simplifications to ensure that the simulations could be analysed completely. The vertebrae were assigned with bone material properties and the intervertebral discs were modeled as two parts - the nucleus pulposus and the annular fibrosis. Flexion, extension and lateral bending movements of the spine segment were simulated and the stresses and deformation generated within the vertebral segment as well as within the rods and screws were analysed. Results showed that adequate stabilization can be achieved through fixation at T12 and L2 for burst fracture of L1 and risk of failure at the critical area.","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"264 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133455680","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

Low-noise low-power true logarithmic amplifier for neural recording applications 用于神经记录应用的低噪声低功耗真对数放大器

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742266

Z. Derafshi, J. Frounchi

引用次数: 5

A new framework for wavelet based analysis of acoustical cardiac signals 心音信号小波分析的新框架

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742288

S. Mandal, J. Chatterjee, A. Ray

引用次数: 6

Toxic element released from high and low carbon CoCrMo alloy in-vitro 高、低碳CoCrMo合金体外释放的有毒元素

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742224

N. Muhamad, F. Majid, M. A. Abdul Kadir

{"title":"Toxic element released from high and low carbon CoCrMo alloy in-vitro","authors":"N. Muhamad, F. Majid, M. A. Abdul Kadir","doi":"10.1109/IECBES.2010.5742224","DOIUrl":"https://doi.org/10.1109/IECBES.2010.5742224","url":null,"abstract":"Biocompatibility is the mutual coexistence between the biomaterials and the physiological environment where neither has damaging effect on the other. The chemical compositions of CoCrMo alloy released in simulated body fluid will be the main point of concern in this study. The toxic element released (cobalt, chromium, nickel and iron) were analyzed from high carbon and low carbon CoCrMo alloy by inductively couple plasma mass spectrometer (ICPMS). The concentrations of element in low carbon (Cobalt-0.502ppm, Chromium-0.337ppm, Nickel - 0ppm, Ferum - 0ppm) compared to the element in high carbon (Cobalt-0.592ppm, Chromium-0.317ppm, Nickel - 0ppm, Ferum - 0ppm) shows no significant different, and can be represented as a combination of one results (Cobalt-8.75E-3%, Chromium-2.8E-4%, Nickel - 0, Ferum - 0). The average cobalt concentration of elements released were increased in cell culture from high and low carbon is (8.75E-3%) and (6.189E-3%) in RPMI 1640 medium. Nevertheless, (chromium, nickel and iron) element released in a low concentrations and low response in cell culture conditions (2.8E-4%, 0%, 0%) and (2.4E-5%, 0%, 1.18E-3%) in RPMI 1640 medium.","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133320137","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

Preliminary study on iris recognition system: Tissues of body organs in iridology 虹膜识别系统的初步研究:虹膜学中人体器官的组织

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742211

Zuraini Othman, Anton Satria Prabuwono

引用次数: 25

A rule-based mHealth system for cardiac monitoring 一种基于规则的心脏监测移动健康系统

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742217

A. Minutolo, Giovanna Sannino, M. Esposito, G. De Pietro

引用次数: 38

Motion analysis of arm movement during badminton smash 羽毛球扣球中手臂运动的动作分析

2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES) Pub Date : 2010-11-01 DOI: 10.1109/IECBES.2010.5742210

M. Salim, H.N. Lim, M. Salim, M. Y. Baharuddin

{"title":"Motion analysis of arm movement during badminton smash","authors":"M. Salim, H.N. Lim, M. Salim, M. Y. Baharuddin","doi":"10.1109/IECBES.2010.5742210","DOIUrl":"https://doi.org/10.1109/IECBES.2010.5742210","url":null,"abstract":"In badminton, it demands excellent physical fitness and good motor coordination for the development of sophisticated racquet movement. This project aims at identifying the difference of forehand overhead smash performed by male and female players. The parameters to study were focused on upper arm, forearm and wrist segments. Qualisys Track Manager (QTM) software and five Oqus camera system were used to record and analyze the performance of e subjects. Eight male and eight female participants served as the subjects. Reflective markers were attached at the key locations on the subject's arm to observe the arm movement during the execution of smash. The subject was directed to stand on the position of the smashing area within the measurement volume and his/her partner who was assigned to serve was directed to stand in the serving area. A sequence of badminton smash movements, from the position of holding racket to smashing motion was captured by the camera. The results obtained indicated that the male subject has higher racquet grip velocity than the female subject. The movement of shoulder abduction and elbow extension were anticipated to be the key contributor for the male players to perform a rapid smash. The female subjects showed a synchronized and significant range of motion especially in the wrist rotation.","PeriodicalId":241343,"journal":{"name":"2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122490713","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: 28