High on sparsity: Interbin compensation of cardiac motion for improved assessment of left-ventricular function using 5D whole-heart MRI.

ABSTRACT:

Purpose

Cardiac magnetic resonance is the gold standard for evaluating left-ventricular ejection fraction (LVEF). Standard protocols, however, can be inefficient, facing challenges due to significant operator and patient involvement. Although the free-running framework (FRF) addresses these challenges, the potential of the extensive data it collects remains underutilized. Therefore, we propose to leverage the large amount of data collected by incorporating interbin cardiac motion compensation into FRF (FRF-MC) to improve both image quality and LVEF measurement accuracy, while reducing the sensitivity to user-defined regularization parameters.

Methods

FRF-MC consists of several steps: data acquisition, self-gating signal extraction, deformation field estimations, and motion-r

SUBMITTER: Yerly J 

PROVIDER: S-EPMC11680726 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature