Tracking atria and ventricles simultaneously from cardiac short- and long-axis MR images

Abstract

We propose a new approach for tracking the cardiac motion by using simultaneously short-axis and long-axis MR images in non-rigid registration. The fusion of two image orientations allows to track more precisely the basal and apical movement of the ventricles. In addition, the motion of the atria is tracked. Correlation coefficients were 0.94 at the systolic phase and 0.97 at the diastolic phase as the volumes of manually and automatically detected chambers were compared. The results were obtained using 7 subjects. © Springer-Verlag Berlin Heidelberg 2003.