Showing papers by "Guanyu Yang published in 2005"

A 3D Static Heart Model From a MSCT Data Set

Abstract: Dynamic computed tomography (CT) imaging aims to access the kinetics of the moving organs. In cardiac imaging, the interest lies in the possibility of obtaining anatomic and functional information on the heart and the coronaries during the same examination. However, segmentation, reconstruction and registration algorithms need to be developed for diagnostic purposes. We propose thus to built a 3D heart model from multi-slice spiral computed tomography (MSCT) dynamic sequences to facilitate the evaluation of these algorithms. The model building relies on semi-automatic segmentation techniques based on deformable models such as fast marching and active contours. Shape-based interpolation and marching cube algorithms are then used for the 3D surface reconstruction