2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences最新文献

The effects of implanting different stents on the blood hemodynamic in coronary arteries 不同支架植入方式对冠状动脉血流动力学的影响

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2013-08-22 DOI: 10.4015/S1016237213500567

K. Hassani, K. Bajelani, M. Navidbakhsh

{"title":"The effects of implanting different stents on the blood hemodynamic in coronary arteries","authors":"K. Hassani, K. Bajelani, M. Navidbakhsh","doi":"10.4015/S1016237213500567","DOIUrl":"https://doi.org/10.4015/S1016237213500567","url":null,"abstract":"Stent implantation alters coronary artery hemodynamic and wall shear stress during cardiac cycles. In this study, three dimensional models were used to analyze the effects of different stent designs and strut thicknesses on the hemodynamic of the artery. The flow was assumed to be pulsatile and stent models were expanded in the artery the same as angioplasty procedure that uses balloon. The data was applied to Fluent-ANSYS package as a UDF MATLAB code. A non-slip condition was applied to the artery walls. The pressure variation in different stents and the wall shear stress distribution were studied. Furthermore, the hemodynamic effects on the flow were investigated for two different thickness values of the same stent design. These results showed that stent implanting is one of the main parameters of pressure drop in the artery. Moreover, the surface of the stent is the location of maximum wall shear stress and the thicker stent strut did not vary this stress much. Our study implies that some design parameters such as thickness affect the hemodynamic factors of blood after stent implantation. Even, stent implanting cause re stenosis in the coronary artery. Using new real models is suggested to investigate the new aspects of stent design and related effects on the hemodynamic of coronary arteries.","PeriodicalId":177199,"journal":{"name":"2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114838922","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

Wavelet based motion artifact removal for ECG signals 基于小波变换的心电信号运动伪影去除

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-17 DOI: 10.1109/IECBES.2012.6498019

F. Hashim, L. Petropoulakis, J. Soraghan, S. Safie

引用次数: 26

Ubiquitous monitoring system for critical cardiac abnormalities 无所不在的关键心脏异常监测系统

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-16 DOI: 10.1007/978-3-642-35521-9_16

U. Qidwai, J. Chaudhry, M. Shakir, Robert G. Rittenhouse

引用次数: 7

Titanium dioxide nanowires-based interdigitated electrodes for biomedical application 生物医学用二氧化钛纳米线交叉指状电极

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498059

S. N. S. A. Ayob, U. Hashim

引用次数: 10

Effects of the polarity and waveform of the stimulus pulse train on the electrically-elicited pressure sensation 刺激脉冲序列的极性和波形对电诱发压力感觉的影响

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498085

J. Ara, S. Hwang, G. Khang, T. Song, T. Bae, Sang-Hyug Park

引用次数: 1

Asthma attack monitoring and diagnosis: A proposed system 哮喘发作监测与诊断:一个建议的系统

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498153

M. Al-khassaweneh, S. Mustafa, F. Abu-Ekteish

引用次数: 10

Identification of Cardiac Ischemia using bispectral analysis of ECG 心电双谱分析识别心脏缺血

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498112

R. Valupadasu, B. R. Chunduri, V. Chanagoni

引用次数: 6

A computational study of single cells trapping inside a microfluidic channel 微流体通道内单细胞捕获的计算研究

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498171

A. A. Khalili, M. Ahmad

引用次数: 2

Respiratory airway resistance monitoring in mechanically ventilated patients 机械通气患者呼吸道阻力监测

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498135

N. S. Damanhuri, Y. Chiew, P. Docherty, P. Geoghegan, G. Chase

{"title":"Respiratory airway resistance monitoring in mechanically ventilated patients","authors":"N. S. Damanhuri, Y. Chiew, P. Docherty, P. Geoghegan, G. Chase","doi":"10.1109/IECBES.2012.6498135","DOIUrl":"https://doi.org/10.1109/IECBES.2012.6498135","url":null,"abstract":"Physiological models of respiratory mechanics can be used to optimise mechanical ventilator settings to improve critically ill patient outcomes. Models are generally generated via either physical measurements or analogous behaviours that can model experimental outcomes. However, models derived solely from physical measurements are infrequently applied to clinical data. This investigation assesses the efficacy of a physically derived airway branching model (ABM) to capture clinical data. The ABM is derived via classical pressure-flow equations and branching based on known anatomy. It is compared to two well accepted lumped parameter models of the respiratory system: the linear lung model (LLM) and the Dynostatic Model (DSM). The ABM significantly underestimates the total pressure drop from the trachea to the alveoli. While the LLM and DSM both recorded peak pressure drops of 17.8 cmH2O and 10.2 cmH2O, respectively, the maximum ABM modelled pressure drop was 0.66 cmH2O. This result indicates that the anatomically accurate ABM model does not incorporate all of the airway resistances that are clinically observed in critically ill patients. In particular, it is hypothesised that the primary discrepancy is in the endotracheal tube. In contrast to the lumped parameter models, the ABM was capable of defining the pressure drop in the deep bronchial paths and thus may allow further investigation of alveoli recruitment and gas exchange at that level given realistic initial pressures at the upper airways.","PeriodicalId":177199,"journal":{"name":"2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128414749","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

Innovative telemedicine solutions for diabetic patients 针对糖尿病患者的创新远程医疗解决方案

2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences Pub Date : 2012-12-01 DOI: 10.1109/IECBES.2012.6498185

F. Lehocki, S. Balogh, E. Zakovicová, M. Kovac, B. De Witte

引用次数: 4