Feasibility of relaxation along a fictitious field in the 2nd rotating frame (T_RAFF2) mapping in the human myocardium at 3 T.

ABSTRACT:

Purpose

Evaluate the feasibility of quantification of Relaxation Along a Fictitious Field in the 2nd rotating frame (RAFF2) relaxation times in the human myocardium at 3 T.

Methods

TRAFF2 mapping was performed using a breath-held ECG-gated acquisition of five images: one without preparation, three preceded by RAFF2 trains of varying duration, and one preceded by a saturation prepulse. Pixel-wise TRAFF2 maps were obtained after three-parameter exponential fitting. The repeatability of TRAFF2 , T1 , and T2 was assessed in phantom via the coefficient of variation (CV) across three repetitions. In seven healthy subjects, TRAFF2 was tested for precision, reproducibility, inter-subject variability, and image quality (IQ) on a Likert scale (1 = Nondiagnostic, 5 = Excellent). Additi

SUBMITTER: Tourais J 

PROVIDER: S-EPMC11652659 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature