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Sensors 2010, 10(12), 11428-11439; doi:10.3390/s101211428
Article
Myocardial Motion Analysis for Determination of Tei-Index of Human Heart
Shengyong Chen 1,*
, Jianhua Zhang 1,2,*
, Houxiang Zhang 2 , Qiu Guan 1 , Yahui Du 1 , Chunyan Yao 1 and Jianwei Zhang 2
, Jianhua Zhang 1,2,*
, Houxiang Zhang 2 , Qiu Guan 1 , Yahui Du 1 , Chunyan Yao 1 and Jianwei Zhang 2
1
College of Computer Science, Zhejiang University of Technology, 310023 Hangzhou, China
2
Department of Informatics, University of Hamburg, 22527 Hamburg, Germany
* Authors to whom correspondence should be addressed.
Received: 4 November 2010; in revised form: 24 November 2010 / Accepted: 8 December 2010 / Published: 13 December 2010
(This article belongs to the Special Issue Sensors in Biomechanics and Biomedicine)
Download PDF Full-Text [675 KB, uploaded 13 December 2010 15:35 CET]
Abstract: 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.
Keywords: cardiac cycle physical phase; Tei index; left ventricular wall motion amplitude; computer vision; image processing
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MDPI and ACS Style
Chen, S.; Zhang, J.; Zhang, H.; Guan, Q.; Du, Y.; Yao, C.; Zhang, J. Myocardial Motion Analysis for Determination of Tei-Index of Human Heart. Sensors 2010, 10, 11428-11439.
AMA StyleChen S, Zhang J, Zhang H, Guan Q, Du Y, Yao C, Zhang J. Myocardial Motion Analysis for Determination of Tei-Index of Human Heart. Sensors. 2010; 10(12):11428-11439.
Chicago/Turabian StyleChen, Shengyong; Zhang, Jianhua; Zhang, Houxiang; Guan, Qiu; Du, Yahui; Yao, Chunyan; Zhang, Jianwei. 2010. "Myocardial Motion Analysis for Determination of Tei-Index of Human Heart." Sensors 10, no. 12: 11428-11439.