Abstract #1008

Velocity Selective Adiabatic Pulses for Arterial Spin Labeling

Luis Hernandez-Garcia¹, Jon-Fredrik Nielssen², and Douglas Noll¹

¹FMRI Laboratory, University of Michigan, Ann Arbor, MI, United States, ²Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States

We introduce a class of adiabatic RF pulses that can invert the magnetization of spins moving at specific velocity bands, regardless of their position within the coil. Velocity selective adiabatic pulses (VSAI) are more robust to B1 inhomogeneity than their non-adiabatic counterparts. We discuss the theory and design considerations and demonstrate their utility in an ASL experiment on a human brain at 3T.

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