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Abstract #1528

Acceleration and Artifact Suppression in Selective TOF MRA with Sampling Reduction

Takashi Nishihara1, Kuniharu Oka1, Masahiro Takizawa1, and Hiroyuki Itagaki1

1Healthcare Business Unit, Hitachi, Ltd., Tokyo, Japan

We confirmed that 2D beam excitation presaturation-pulse (hereafter BeamSat pulse) can saturate the vessels selectively in brain. Although BeamSat can visualize hemodynamics, the scan time is long (about 5 minutes) because the based sequence is 3D TOF. The single thick slice 2D TOF was used for based sequence to reduce the scan time and the ks offset was added to saturate background brain signal. We showed that this method can accelerate the scan time to 0.6-0.8 seconds without the notable loss of vessel visualization.

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