Right Ventricular Strain Analysis from 3D Echocardiography by Using Temporally Diffeomorphic Motion Estimation
Right Ventricular Strain Analysis from 3D Echocardiography by Using Temporally Diffeomorphic Motion Estimation
复制标题
使用时间微分形运动估计进行 3D 超声心动图右心室应变分析
DOI：
10.1007/978-3-642-38899-6_56
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发表时间：
2013
影响因子：
--
通讯作者：
Xubo B. Song
中科院分区：
文献类型：
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作者：
Zhijun Zhang;D. Sahn;Xubo B. Song
右心室 (RV) 的定量运动分析对于研究其功能非常重要。然而，由于其复杂的形状和现有成像方法的局限性，右心室的研究比左心室（LV）的研究更加困难。我们提出了一种微分同胚运动估计方法，并将其应用于不同稳态下五只开胸猪的 3D 超声心动图。我们首先使用声测法验证运动估计方法。然后我们估计不同稳态的心肌应变。将右心室游离壁（RVFW）分为十二段，并分析其在每个稳态下的应变模式以及相应的心脏力学。这是首次利用算法对3D超声心动图RVFW段应变进行定量分析。
Quantitative motion analysis of the right ventricle (RV) is important to study its function. However, the RV study is more difficult than that of left ventricle (LV) because of its complex shape and the limitations of the existing imaging methods. We propose a diffeomorphic motion estimation method and apply it to the 3D echocardiography of five open-chest pigs under different steady states. We first validate the motion estimation method by using sonomicrometry. Then we estimate the myocardium strain of different steady states. The RV free wall (RVFW) is divided into twelve segments and their strain patterns in each steady states together with the corresponding cardiac mechanics are analyzed. This is the first time to quantitatively analyze the RVFW segment strains from 3D echocardiography by using algorithm.