3D Whole-Heart Joint T₁/T_1ρ Mapping and Water-Fat Imaging on a Clinical 0.55-T Low-Field Scanner.

ABSTRACT: Myocardial maps are conventionally acquired in 2D breath-hold single-parameter scans that are slow and have limited heart coverage. To overcome limitations associated with 2D breath-hold mapping sequences, we develop a novel free-breathing 3D joint T1$$ {T}_1 $$ / T1ρ$$ {T}_{1\rho } $$ mapping sequence with Dixon encoding to provide co-registered 3D T1$$ {T}_1 $$ and T1ρ$$ {T}_{1\rho } $$ maps and water-fat volumes with isotropic spatial resolution in a single scan for comprehensive contrast-agent free myocardial tissue characterization and visualisation of the whole-heart anatomy on a clinical 0.55-T MR scanner. The proposed sequence acquires four interleaved 3D volumes with preparation modules to provide T1$$ {T}_1 $$ and T1ρ$$ {T}_{1\rho } $$ encoding, with data acquired with a two-echo

SUBMITTER: Crabb MG 

PROVIDER: S-EPMC12723209 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature