Three-dimensional motion corrected free-breathing simultaneous multislice-balanced steady state free precession myocardium perfusion imaging.

ABSTRACT:

Background

To develop a 3D motion-corrected simultaneous multislice-balanced steady state free precession (SMS)-bSSFP acquisition to enable free-breathing myocardial perfusion with high spatial resolution and coverage.

Methods

A fast diaphragmatic respiratory navigator (fastNAV) module (<15 ms) was implemented into an SMS-bSSFP sequence for prospective slice-tracking. The remaining 2D in-plane motion was corrected using inline image registration. This approach (SMS-fastNAV) was compared to a reference SMS perfusion with 2D in-plane motion correction only (SMS-Ref) in 10 patients at 1.5T. Each subject underwent both perfusion protocols (six slices, resolution: 1.9×1.9mm²) in a random order. The residual motion of the left ventricule (LV) was assessed by measuring t

SUBMITTER: Adam N 

PROVIDER: S-EPMC12271901 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature