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Abstract #0389

Velocity Encoded and Compensated Multi-Spoke RF Pulses for Flow Quantification at Ultra-High Fields

Simon Schmidt1, Sebastian Flassbeck1, Mathies Breithaupt1,2, Peter Bachert1, Mark E. Ladd1, and Sebastian Schmitter1,3

1Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, 2Institute for Forensic Medicine and Traffic Medicine, University Hospital Heidelberg, Heidelberg, Germany, 3Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany

In this work we present and demonstrate a novel technique to generate multi-spoke RF excitation with arbitrary zeroth and first gradient moments, allowing for clean flow imaging without errors. The RF pulses are demonstrated in flow phantoms and in-vivo at 7 Tesla, paving the road for 4D flow imaging using pTX spoke excitation.

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