Effect of through-plane motion on left ventricular rotation: a study using slice-following harmonic phase imaging.

ABSTRACT: Noninvasive quantification of regional left ventricular rotation may improve understanding of cardiac function. Current methods used to quantify rotation typically acquire data on a set of prescribed short-axis slices, neglecting effects due to through-plane myocardial motion. We combine principles of slice-following tagged imaging with harmonic phase analysis methods to account for through-plane motion in regional rotation measurements. We compare rotation and torsion measurements obtained using our method to those obtained from imaging datasets acquired without slice-following. Our results in normal volunteers demonstrate differences in the general trends of average and regional rotation-time plots in midbasal slices and the rotation versus circumferential strain loops. We observe substa

SUBMITTER: Brotman D 

PROVIDER: S-EPMC3807254 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature