Analysis of left ventricle regional myocardial motion for cardiac radioablation: Left ventricular motion analysis.

ABSTRACT:

Purpose

Left ventricle (LV) regional myocardial displacement due to cardiac motion was assessed using cardiovascular magnetic resonance (CMR) cine images to establish region-specific margins for cardiac radioablation treatments.

Methods

CMR breath-hold cine images and LV myocardial tissue contour points were analyzed for 200 subjects, including controls (n = 50) and heart failure (HF) patients with preserved ejection fraction (HFpEF, n = 50), mid-range ejection fraction (HFmrEF, n = 50), and reduced ejection fraction (HFrEF, n = 50). Contour points were divided into segments according to the 17-segment model. For each patient, contour point displacements were determined for the long-axis (all 17 segments) and short-axis (segments 1-12) directions. Mean overall, tangential (l

SUBMITTER: Poon J 

PROVIDER: S-EPMC11087184 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature