Assessment of strain and strain rate in embryonic chick heart in vivo using tissue Doppler optical coherence tomography

被引：32

作者：

Li, Peng ^{[1
]}

Liu, Aiping ^{[2
]}

Shi, Liang ^{[2
]}

Yin, Xin ^{[2
]}

Rugonyi, Sandra ^{[2
]}

Wang, Ruikang K. ^{[1
]}

机构：

[1] Univ Washington, Dept Bioengn, Seattle, WA 98195 USA

[2] Oregon Hlth & Sci Univ, Dept Biomed Engn, Portland, OR 97239 USA

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2011年 / 56卷 / 22期

关键词：

BLOOD-FLOW; VISUALIZATION; VASCULATURE; VELOCIMETRY; VENTRICLE; PRESSURE; DYNAMICS; STAGE-16; SPEED;

D O I：

10.1088/0031-9155/56/22/006

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We present a method to assess the in vivo radial strain and strain rate of the myocardial wall, which is of great importance to understand the biomechanics of cardiac development, using tissue Doppler optical coherence tomography (tissue-DOCT). Combining the structure and velocity information acquired from tissue-DOCT, the velocity distribution in the myocardial wall is plotted, from which the radial strain and strain rate are evaluated. The results demonstrate that tissue-DOCT can be used as a useful tool to describe tissue deformation, especially, the biomechanical characteristics of the embryonic heart.

引用

页码：7081 / 7092

页数：12

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