Deformable model application on segmentation in 3-D echocardiography
Pedro Linares, Victor A. Torrealba, G. Montilla, Antonio M. Bosnjak, C. Jimenez, Victor Barrios · 2002
This work presents 3D cardiac images rendering based on volumetrics of plane sections obtained from the cardiac wall segmentation. This work introduces a non-rigid model based on physics as a segmentation method. An object is constructed in the shape of a polygon of n vertices, with masses on each of them, interconnected with springs to each other. The model is deformed when exposed to a force field that moves it toward the desired contour. In order to obtain the volumetric reconstructed rendering of the ventricular cavity, the method was used on a series of apical views of the heart of a healthy person. The views belong to radial sections (equally spaced in angle) which, alter segmentation, and by means of a bilinear interpolation process, permitted the reconstruction of a 3D image of the ventricular cavity.