Choice of Bandpass Filter on Accuracy of Myocardial Deformation Recovery with SinMod

Hui Wang¹, Mo Kadbi¹, Melanie Troughber², Amir Amini¹

Tagged MRI has been an excellent technique for measuring myocardial deformations and cardiac mechanical functions since its development in the late 1980s. In data processing, a number of approaches have been proposed in recent years. Among all, frequency-based methods have become more widely popular for analysis of myocardial displacements . In particular, the SimMod has the following distinct advantages over HARP analysis which has become popular for frequency domain analysis of tagged images. Bandpass filtering the off-center peak of tagged image spectrum is a critical step for accurate recovery of the cardiac motion with SinMod. In this abstract, we compared the performance of three different types of bandpass filters in analyzing myocardial deformation using the SinMod method.