Parameterization of real-time 3D speckle tracking framework for cardiac strain assessment.
Parameterization of real-time 3D speckle tracking framework for cardiac strain assessment.
复制标题
用于心脏应变评估的实时 3D 斑点跟踪框架的参数化。
DOI：
10.1109/iembs.2011.6090730
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Laine,AndrewF
中科院分区：
文献类型：
--
作者：
Lorsakul,Auranuch;Duan,Qi;Po,MingJack;Angelini,Elsa;Homma,Shunichi;Laine,AndrewF
Cross-correlation based 3D speckle tracking algorithm can be used to automatically track myocardial motion on three dimensional real-time (RT3D) echocardiography. The goal of this study was to experimentally investigate the effects of different parameters associated with such algorithm to ensure accurate cardiac strain measurements. The investigation was performed on 10 chronic obstructive pulmonary disease RT3DE cardiac ultrasound images. The following two parameters were investigated: 1) the gradient threshold of the anisotropic diffusion pre-filtering and 2) the window size of the cross correlation template matching in the speckle tracking. Results suggest that the optimal gradient threshold of the anisotropic filter depends on the average gradient of the background speckle noise, and that an optimal pair of template size and search window size can be identified determines the cross-correlation level and computational cost.
