Extraction of left-ventricular chamber from 3-D CT images of the heart.
A semiautomatic method is described for extracting the volume and shape of the left ventricular (LV) chamber from a dynamic spatial reconstructor cardiac volume. For a given volume, the operator first performs some simple manual edits. Then, an automated stage, which incorporates concepts from 3-D mathematical morphology and technology, the maximum-homogeneity filter, and an adaptive 3-D thresholder, extracts the LV chamber. The method gives more consistent measurements and demands considerably less operator time than manual slice-editing.
Higgins
W E
WE
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA.
Chung
N
N
Ritman
E L
EL