Fig. 1

Pulse sequence diagram of the MB-DIR-RADFSE technique. The double inversion recovery (DIR) preparatory module, which comprises the non-selective (NS) and slab-selective inversion radiofrequency (RF) pulses, is played out following a cardiac trigger signal. After the TI chosen to null the signal from blood spins, data are acquired using an fast spin echo (FSE) readout with a radial scanning trajectory. The 90^° excitation is a multiband (MB) RF pulse designed to excite multiple slices; the refocusing pulses are all slab-selective to refocus the spins within the excited volume