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Measurement of left ventricular torsion using block-matching-based speckle tracking for two-dimensional echocardiography

[+] Author Affiliations
Feng-Rong Sun

Shandong University, School of Information Science and Engineering, Jinan 250100, China

Xiao-Jing Wang

Research and Development Center, Toshiba (China) Co., Ltd., Beijing 100738, China

Qiang Wu

Shandong University, School of Information Science and Engineering, Jinan 250100, China

Gui-Hua Yao, Yun Zhang

Qilu Hospital of Shandong University, Cardiology Department, Jinan 250012, China

J. Electron. Imaging. 22(1), 013010 (Jan 15, 2013). doi:10.1117/1.JEI.22.1.013010
History: Received September 6, 2012; Revised November 27, 2012; Accepted December 11, 2012
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Abstract.  Left ventricular (LV) torsion is a sensitive and global index of LV systolic and diastolic function, but how to noninvasively measure it is challenging. Two-dimensional echocardiography and the block-matching based speckle tracking method were used to measure LV torsion. Main advantages of the proposed method over the previous ones are summarized as follows: (1) The method is automatic, except for manually selecting some endocardium points on the end-diastolic frame in initialization step. (2) The diamond search strategy is applied, with a spatial smoothness constraint introduced into the sum of absolute differences matching criterion; and the reference frame during the search is determined adaptively. (3) The method is capable of removing abnormal measurement data automatically. The proposed method was validated against that using Doppler tissue imaging and some preliminary clinical experimental studies were presented to illustrate clinical values of the proposed method.

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Citation

Feng-Rong Sun ; Xiao-Jing Wang ; Qiang Wu ; Gui-Hua Yao and Yun Zhang
"Measurement of left ventricular torsion using block-matching-based speckle tracking for two-dimensional echocardiography", J. Electron. Imaging. 22(1), 013010 (Jan 15, 2013). ; http://dx.doi.org/10.1117/1.JEI.22.1.013010


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