We proposed and assessed a simultaneous time-encoding
for bipolar MRA technique (STEP-MRA), combining both the
4DASL-MRA of nulling background signals and PSIR BB-MRA with preserving Mz polarities
and background stationary signals, which allows
simultaneously providing using the same acquired data
as the standard 4DASL-MRA. In addition, vessel visualization and SNR were improved
by synthesizing multiple TI data. Although further parameter optimization and
clinical evaluation are required, our proposed method has a potential to
provide various information with limited acquisition data.
