Previously published work in fully self-gated free-breathing 3D radial coronary MRA at 1.5T with cardiac-and-respiratory-motion-resolved reconstruction (Free-running framework) suffered from the disadvantage of requiring interrupted bSSFP with ramp-up and fat saturation pre-pulses. Using numerical simulations, in vitro and in vivo scans, we successfully tested the hypothesis that LIBRE, a new water excitation technique, obviates the need for such pre-pulses, improves time efficiency when compared to earlier approaches, and provides both superior fat saturation and vessel delineation relative to more conventional water excitation.
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