Meeting Banner
Abstract #1254

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

Hui Wang1, Mo Kadbi1, Melanie Troughber2, Amir Amini1

1University of Louisville, Louisville, KY, United States; 2Philips Medical Systems, Cleveland, Oh, United States

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.

Abstract PDF

Keywords

abstract accuracy accurate advantages among analyzing applied applying approaches around arts assess band bandpass become cardiac choice components computationally computed considered convolution coordinates correct cosine critical cutoff deformation deformations determined development diastole diastolic directly disk displacement displacements distinct distribution domain employed error excellent faster field fields filter filtering filters finely five formulas frame frames frequencies frequency front functions generally generated ground harp ideal improved intensity inverse isolate journal kinematic late length local measuring mechanical medical model modeled motion multiplication myocardial orthogonal outperformed outside overall particular pass peak peaks percent performance pixel popular prince processing produced proposed radian radiology reason recent recovery remains root simulated since slightly spatial spectral spectrum squared step systems systole systolic table tagged tagging together tracking trans transformation transforms truth tuned types upon validate vector wave widely years zeroing