Correcting B1+ inhomogeneities is imperative in T1 mapping using a VFA 3D SPGR sequence. We compared B1+ mapping using a preconditioning RF (preRF) pulse and TurboFLASH readout against B1+ mapping using a 2D double angle method (DAM) with EPI readout. The preRF method had a residual B1+-related variation in the T1 maps of 143ms, 95% CI [135, 150] and 170ms, 95% CI [158, 181] for 2 healthy volunteers while the DAM reduced these, with B1+-related variations of -27ms, 95% CI [-33, -20] and -8ms, 95% CI [-18, 2].
This abstract and the presentation materials are available to members only; a login is required.