Figure 1

a) Continuous composite water-selective tip-down: The first half of the pulse rotates water and fat magnetization into the transverse plane; the second half flips only fat back. A 90° fat/water shift exists between the center of the first and the center of the second (τ/2 = 614 µs). The pulse causes two consecutive rotations about the x and the -y axis. b) Continuous composite water-selective flip-back and fat-selective inversion. The phase modulation corresponds to a rotation about y for the first half and about -x for the second. c) The novel T2PFS module using above pulses and four B1 insensitive refocusing pulses (BIREF-1). Time ½Δt is measured from the end of the refocusing pulse to the first quarter of the continuous composite pulse. d) Relaxation curves of water and fat showing T2-weighting of water and inversion of fat magnetization. Transverse and longitudinal relaxation processes are combined in one graph.