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

Fengrong Sun; Xiao-Jing Wang; Qiang Wu; Gui-Hua Yao; Yun Zhang

doi:10.1117/1.JEI.22.1.013010

15 January 2013 Measurement of left ventricular torsion using block-matching-based speckle tracking for two-dimensional echocardiography

Fengrong Sun, Xiao-Jing Wang, Qiang Wu, Gui-Hua Yao, Yun Zhang

Author Affiliations +

Journal of Electronic Imaging, Vol. 22, Issue 1, 013010 (January 2013). https://doi.org/10.1117/1.JEI.22.1.013010

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.

Citation Download Citation

Fengrong 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," Journal of Electronic Imaging 22(1), 013010 (15 January 2013). https://doi.org/10.1117/1.JEI.22.1.013010

Published: 15 January 2013

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KEYWORDS

Magnetism

Reticles

Electron beam lithography

Lithography

Light sources

Semiconducting wafers

Extreme ultraviolet

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