摘要 |
A magnetic resonance (MR) system 10 includes a scan controller 20 which generates a plurality of like MR pulse sequences TR. Each pulse sequence includes a plurality (m) of RF excitation pulses EXC which selectively excite a nuclear species, a plurality of different spin lock pulses SL1, SL2, SLm before each RF excitation pulse EXC, a plurality of data readout intervals RE1, RE2, . . . , REm. A SAR unit 42 determines a SAR value corresponding to the pulse sequence and determines a shortest repetition time for the pulse sequence based on the SAR value. A plurality of pulse sequences TR are applied, each corresponds to a single phase encode. The pulse sequences are identical except for the phase encode gradients such that a plurality of T1p-weighted images of the examination region are generated. A T1p processor 40 analyzes the T1p-weighted images and generates a T1p map of the examination region according to the analysis. |