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Abstract #0535

3D Flow Compensated Interleaved EPI with Partial Fourier Acquisition:  A Feasibility Study for Fast Intracranial TOF-MRA

Wei Liu1 and Kun Zhou1
1Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China

As commonly used for intracranial vasculature, 3D TOF usually requires long acquisition time. In this study, we implemented a 3D-iEPI sequence with partial flow compensation, combined with partial Fourier acquisition to further reduce the flow artifacts. In specific, each interleave is sequentially acquired twice with alternating readout polarities to reduce the systematic inconsistencies between odd and even echoes. We explored the feasibility of such a sequence for fast intracranial TOF-MRA and demonstrated that the proposed sequence can reduce the acquisition time by approximately a factor of 2 with comparable vasculature depiction to 3D-GRE, which is promising for future applications.

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