2009 14th National Biomedical Engineering Meeting最新文献_第7页

Coarray sampling methods for forward looking IVUS imaging 前瞻性IVUS成像的阵列采样方法

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130318

C. Tekes, M. Karaman

引用次数: 0

Multi-channel acoustic mapping of respiratory system based on adventitious sound source separation 基于非定声源分离的呼吸系统多通道声学映射

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130366

I. Sen, M. Saraçlar, Y. Kahya

{"title":"Multi-channel acoustic mapping of respiratory system based on adventitious sound source separation","authors":"I. Sen, M. Saraçlar, Y. Kahya","doi":"10.1109/BIYOMUT.2009.5130366","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130366","url":null,"abstract":"The aim of this study is to localize the pathological compartments of the lung based on the characteristics of the modified pulmonary sounds. Sound signals recorded simultaneously at more than one point on the posterior chest wall are subjected to source separation methods in order to separate sound components associated with the disease. For this study, Basic Independent Component Analysis (BICA), Separation By Autocovariances (SBA) and Convolutive Blind Source Separation (CBSS), out of various source separation methods, are adopted and used. The measure proposed to find the most similar among the extracted independent components to the true source is kurtosis and Kullback-Liebler (K-L) distance. After the similarities between measured signals and the chosen component are located as coefficients onto the recording points on the chest wall and thereby formed matrix is visually improved via interpolation, a two-dimensional map is obtained, although with low resolution, showing estimated pathology source location and audibility distribution of the adventitious sound component around this source. This study is intended to be a pioneer to studies on acoustic-based respiratory system imaging which can function as an alternative to computer chest tomography in some necessary circumstances, and complementary in others.","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130726102","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

Evaluation of anxiety related changes in skin conductance and blood volume pulse signals during coronary angiography 冠状动脉造影时皮肤电导和血容量脉搏信号焦虑相关变化的评价

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130285

S. Okkesim, M. H. Asyali, S. Kara, M. Kaya, İdris Ardiç

{"title":"Evaluation of anxiety related changes in skin conductance and blood volume pulse signals during coronary angiography","authors":"S. Okkesim, M. H. Asyali, S. Kara, M. Kaya, İdris Ardiç","doi":"10.1109/BIYOMUT.2009.5130285","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2009.5130285","url":null,"abstract":"Although, stress, sleep deprivation, excessive fatigue and inattention are common health problem in advanced society, there are many methodological problems that make it difficult to measure these emotional states in clinical situations. The main goal of this study is to investigate whether variation of stress due to treatment techniques used in a hospital setting can be successfully assessed and/or quantized using physiological variables. To this end, blood volume pulse and skin conductance signals of 8 patients who underwent angiography operation at the Cardiology Center of Erciyes University (Kayseri, Turkey), are obtained. Recordings were done at three stages: one hour before, during, and one hour after the angiography test. Our preliminary results indicate that the changes in the physiological variables across different subjects are remarkably consistent. This promising result is motivating us to consider and include other possible physiological variables and/or signals in our recording scheme to quantitatively assess changes in the emotional state of subjects undergoing critical operations.","PeriodicalId":119026,"journal":{"name":"2009 14th National Biomedical Engineering Meeting","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134259303","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

Fiber tracking using recursive stack data structure 光纤跟踪采用递归堆栈数据结构

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130350

D. G. Duru, M. Ozkan

引用次数: 0

Serbest dalgiclarda iYKAS ile serebrovaskuler reaktivite olcumu

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130332

Deniz Nevsehirli, Ata Akin

引用次数: 0

Image processing method for artificial sight systems based on contrast information 基于对比度信息的人工视觉系统图像处理方法

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130320

M. Ozden, Nergis Karadoruk, I. Karagoz

引用次数: 0

A Monte Carlo Simulation for photon migration in non-homogeneous medium 非均匀介质中光子迁移的蒙特卡罗模拟

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130301

R. U. Tok, Tamer Olmez, A. Akın

引用次数: 0

Extendable intramedullary nail with mechanical loading 带机械载荷的可伸缩髓内钉

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130323

B. Uzun, O. Baran, H. Havitcioglu

引用次数: 0

Tissue welding by Thulium laser system: Predosimetry studies 铥激光系统组织焊接:预剂量学研究

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130347

A. Sennaroğlu, M. Gulsoy, H. Kalaycıoğlu, N. Topaloglu, A. Kurt, A. Sennaroğlu, M. Gulsoy

引用次数: 0

Immobilization of thrombin to bio/chemically modified synthetic fabrics 凝血酶在生物/化学改性合成织物上的固定化

2009 14th National Biomedical Engineering Meeting Pub Date : 2009-05-20 DOI: 10.1109/BIYOMUT.2009.5130346

Alper Akkaya, N. Pazarlıoğlu

引用次数: 0