A prepulse for resetting longitudinal and transverse magnetization is proposed in order to accelerate magnetic resonance fingerprinting (MRF) with Cartesian sampling. A pulse sequence was developed based on a steady-state free precession sequence in which the prepulse consists of a set of radio frequency (RF) pulses and gradient spoilers. Simulation and experimental results demonstrated that the prepulse enables fast MRF in the presence of additional sequence modules, such as respiration triggering.
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