Tracking and motion analysis of the left ventricle with deformable superquadrics.
Tracking and motion analysis of the left ventricle with deformable superquadrics.
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DOI：
10.1016/s1361-8415(96)80009-0
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发表时间：
1996-06-01
影响因子：
10.9
通讯作者：
Ayache, N
中科院分区：
文献类型：
--
作者：
Bardinet, E;Cohen, L D;Ayache, N
我们提出了一种新的分析心脏左心室变形的方法，该方法基于一个参数模型，该模型给出了三维图像中一组点的紧凑表示。我们提出了一种在3D心脏图像序列中跟踪表面的策略。在跟踪之后，我们推断出表征心脏运动的量化参数：左心室运动、左心室容量、射血分数、心脏运动的幅度和扭转分量。我们用我们的模型解释了这些参数的计算。实验结果显示在两种模式的医学图像，核医学和X射线计算机断层扫描(CT)的时间序列。介绍这些结果的视频序列在CD-ROM上。
We present a new approach to analyse the deformation of the left ventricle of the heart based on a parametric model that gives a compact representation of a set of points in a 3-D image. We present a strategy for tracking surfaces in a sequence of 3-D cardiac images. Following tracking, we then infer quantitative parameters which characterize: left ventricle motion, volume of left ventricle, ejection fraction, amplitude and twist component of cardiac motion. We explain the computation of these parameters using our model. Experimental results are shown in time sequences of two modalities of medical images, nuclear medicine and X-ray computed tomography (CT). Video sequences presenting these results are on the CD-ROM.