2010 15th National Biomedical Engineering Meeting最新文献_第7页

Texture analysis of liver cirrhosis 肝硬化的肌理分析

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479742

Omer Kayaalti, B. H. Aksebzeci, M. H. Asyali, O. Karahan, K. Deniz, M. Ozturk

{"title":"Texture analysis of liver cirrhosis","authors":"Omer Kayaalti, B. H. Aksebzeci, M. H. Asyali, O. Karahan, K. Deniz, M. Ozturk","doi":"10.1109/BIYOMUT.2010.5479742","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479742","url":null,"abstract":"Liver with cirrhosis emerges when the cells of liver begin to die and the tissues become a functional knot from these. In the diagnosis of fibrosis, the needle biopsy is a golden standard. Although this technique is a good techique in reaching accurate diagnosis, its being an invasive method arises disadvantage. The developments in medical image processing and artificial intelligence techniques have advanced the potential of using diagnosis system in classification of liver tissues. In this study, we have aimed at producing some objective measures using image analysis, which will be of assistance in the diagnosis of cirrhosis. In order to differentiate between regions of liver with cirrhosis and healthy parenchymal tissues, we have used first order statistical texture features and second order texture features computed from gray level cooccurrence matrix of liver computerized tomography (CT) images. Then liver CT images of healthy people and people with cirrhosis have been classified with support vector machines (SVM) by using all these acquired features. The most successful classification has been calculated as 85.19% with the method of 10 fold cross-validation.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127416621","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: 5

Sinc interpolating approach to sub-pixel image stitching for virtual microscopy 虚拟显微镜亚像素图像拼接的正弦插值方法

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479798

Gökhan Baş, G.K. Demir

引用次数: 0

Epileptic source localizations based on EEG and SDE measurements 基于脑电图和SDE测量的癫痫源定位

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479788

A. Duru, G. Akdeniz, E. Kara, Ç. Özkara, M. Uzan, A. Ademoglu, T. Demiralp

引用次数: 4

Creating head model by using 3-D pattern and evaluation of SAR mapping with numerical methods 利用三维模式建立头部模型，用数值方法评价SAR制图效果

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479752

L. N. Polat, M. Kahriman, S. Çömlekçi

引用次数: 2

Sensitivity of circular coils to conductivity changes: Analytical and numerical solutions 圆线圈对电导率变化的敏感性:解析解和数值解

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479791

Koray Özkan, N. G. Gencer

引用次数: 0

Floating power supply with supercapacitors 带有超级电容器的浮动电源

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479870

Koray Gürkan, E. Özer

引用次数: 0

An electrostatic parylene microvalve for lab-on-a-chip applications 用于芯片上实验室应用的静电聚对二甲苯微阀

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479784

E. Yıldırım, A. Koyuncuoğlu, H. Külah

引用次数: 0

Mechanical modeling of microtubules based on nonlocal continuum theory 基于非局部连续介质理论的微管力学建模

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479733

O. Civalek, B. Akgöz

引用次数: 1

A simple set up for the measurement of patient response time in fMRI 在功能磁共振成像中测量病人反应时间的简单装置

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479840

A. Demir, A. U. Keskin, M. Unsal, A. Bayram

引用次数: 1

A realization of a P300 based Brain-Computer Interface system 基于P300的脑机接口系统的实现

2010 15th National Biomedical Engineering Meeting Pub Date : 2010-04-21 DOI: 10.1109/BIYOMUT.2010.5479781

Balkar Erdoğan, N. G. Gencer

{"title":"A realization of a P300 based Brain-Computer Interface system","authors":"Balkar Erdoğan, N. G. Gencer","doi":"10.1109/BIYOMUT.2010.5479781","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479781","url":null,"abstract":"Brain-Computer Interface is an alternative communication system between human and outside world which enables paralyzed and locked-in patients (like Amyotrophic lateral sclerosis - ALS) to communicate with their environment or control some electronic devices like computer using only their brain activity. Over the last two decades, numerous studies have been performed on this title and researchers proposed various applications and methodologies related to BCI research. In this study, a design and implementation of a P300 based BCI is realized. The hardware of the system consists of a 10 channel Electroencephalography (EEG) device which has been developed in our laboratory for BCI research. As the first application of this system, the so called “P300 Speller” of Farwell and Donchin has been chosen. Several statistical signal processing techniques and operational optimizations have been applied to improve the speed-accuracy performance of this spelling application. According to the online experiment results performed to test the practicality of this system, two out of five healthy participants were able to operate the system using only two trial repetitions for the perfect prediction of the target characters (6 seconds). The average and maximum bit rates of the system were measured to be 10.4bits/min and 31.14bits/min respectively. Regarding these results, the developed system has superior performance as compared to most of the P300 based BCI systems in the literature.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127693085","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