Compartment-based reconstruction of 3D acquisition-weighted ³¹ P cardiac magnetic resonance spectroscopic imaging at 7 T: A reproducibility study.

ABSTRACT: Even at 7 T, cardiac ³¹ P magnetic resonance spectroscopic imaging (MRSI) is fundamentally limited by low signal-to-noise ratio (SNR), leading to long scan times and poor temporal and spatial resolutions. Compartment-based reconstruction algorithms such as magnetic resonance spectroscopy with linear algebraic modeling (SLAM) and spectral localization by imaging (SLIM) may improve SNR or reduce scan time without changes to acquisition. Here, we compare the repeatability and SNR performance of these compartment-based methods, applied to three different acquisition schemes at 7 T. Twelve healthy volunteers were scanned twice. Each scan session consisted of a 6.5-min 3D acquisition-weighted (AW) cardiac ³¹ P phase encode-based MRSI acquisition and two 6.5-min truncated k-

SUBMITTER: Tyler A 

PROVIDER: S-EPMC10658645 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature