%0 Journal Article
%T A SIMULATION STUDY ON EFFECTIVE PARAMETERS TO REPRESENT THE HETEROGENEITY IN VENTRICULAR REPOLARIZATION<br>表征心室复极不一致有效参数的仿真研究
%A YANG Zhong-fu
%A LI Chuan-yong
%A <br>杨中服
%A 李川勇
%J 生物物理学报
%D 2004
%I 
%X A one-dimension model of myocardium from endocardium to epicardium was established. The heterogeneity of ventricular repolarization was produced by changing the ischemic degree, in which the electrogram was calculated by different method. The QT dispersion and ARI (activation recovery interval) dispersion was then obtained. It showed that there was no obvious difference in QT interval between ischemic region and normal region, thus QT dispersion was close to zero. It can not effectively represent the heterogeneity in ventricular repolarization. However, there was an obvious difference in ARI between ischemic region and normal region, and the ARI dispersion was proportional to ischemic degree. Therefore it can effectively represent the heterogeneity in ventricular repolarization.
%K Bidomain model
%K Ischemia
%K Heterogeneity in ventricular repolarization
%K QT dispersion
%K ARI dispersion<br>双域模型
%K 心肌缺血
%K 心室复极不一致
%K QT离散度
%K ARI离散度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=667174C829759673&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=94C357A881DFC066&sid=87545994EC2C1F12&eid=EE23223CE4332BD7&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=1&reference_num=10