Imaging 4D morphology and dynamics of mitral annulus in humans using cardiac cine MR feature tracking.

ABSTRACT: Feature tracking in cine cardiac magnetic resonance (CMR) is a quantitative technique to assess heart structure and function. We investigated 4-dimensional (4D) dynamics and morphology of the mitral annulus (MA) using a novel tracking system based on radially rotational long-axis cine CMR series. A total of 30 normal controls and patients with mitral regurgitation were enrolled. The spatiotemporal changes of the MA were characterized by an in-house developed program. Dynamic and morphological parameters extracted from all 18 radial slices were used as references and were compared with those from subsequently generated sub-datasets with different degrees of sparsity. An excellent agreement was found among all datasets including routine 2-, 3- and 4-chamber views for MA dynamics such as peak

SUBMITTER: Leng S 

PROVIDER: S-EPMC5758818 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature