Myocardial Motion Analysis for Determination of Tei-Index of Human Heart

Sensors

Shengyong Chen²  Jianhua Zhang²  Houxiang Zhang¹  Qiu Guan²  Yahui Du²  Chunyan Yao² 

[1] Department of Informatics, University of Hamburg, 22527 Hamburg, Germany;College of Computer Science, Zhejiang University of Technology, 310023 Hangzhou, China

关键词: cardiac cycle physical phase;    Tei index;    left ventricular wall motion amplitude;    computer vision;    image processing;   

DOI  :  10.3390/s101211428

来源: mdpi

【 摘 要 】

The Tei index, an important indicator of heart function, lacks a direct method to compute because it is difficult to directly evaluate the isovolumic contraction time (ICT) and isovolumic relaxation time (IRT) from which the Tei index can be obtained. In this paper, based on the proposed method of accurately measuring the cardiac cycle physical phase, a direct method of calculating the Tei index is presented. The experiments based on real heart medical images show the effectiveness of this method. Moreover, a new method of calculating left ventricular wall motion amplitude is proposed and the experiments show its satisfactory performance.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.