To develop and validate the non-contrast time-resolved MR angiography (NC TR-MRA) with consecutive beam pulse with variable saturation flip angle method, we performed a phantom study using steady flow and the volunteer study targeted to the pulmonary artery. The length of visualized flow signals was exhibited proportional to the number of beam saturation pulses in the phantom study. In human study, the visualization range of the pulmonary artery was also extended with increasing the number of beam pulses. The novel consecutive beam pulse with variable saturation flip angle method can depict blood vessels in each flow phase.
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