Model simulation of a curvature matching algorithm to assess systolic and diastolic LV wall motion

Curvature-motion (CM) is a method explaining shape analysis to assess left ventricular (LV) wall motion. A model based approach is proposed for validation. Complete contour sequences from end-diastolic LV outlines were generated by applying a locally linear transformation to simulate normal/abnormal systolic and diastolic movements. Time trajectories and segmental excursions, as measured by the centerline, radial, and curvature-motion methods, were compare with those obtained by connecting the known transformed points. The CM method showed the best agreement with model data. This confirms the physiologically based assumptions, as far as 2-D data are concerned