Abstract #3300

Free Breathing Renal Perfusion Imaging at 3T Using Velocity-Selective Inversion prepared Arterial Spin Labeling

Dan Zhu^1,2, Dapeng Liu^2,3, Wenbo Li^2,3, Michael Schär², and Qin Qin^2,3

¹Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, United States, ²Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, United States, ³. F.M. Kirby Research Center for Functional Brain Imaging, Johns Hopkins University School of Medicine, Baltimore, MD, United States

Renal perfusion has clinical significance in diagnosis of renal diseases. Velocity-selective arterial spin labeling (VSASL) has minimal sensitivity to arterial transit time delay and velocity-selective inversion (VSI) labeling could improve SNR of perfusion signal. Here renal VSASL images were acquired using different post-labeling delay time and under different B1 shimming conditions. The feasibility of VSI based ASL for renal perfusion mapping at 3T under free breathing is demonstrated on healthy volunteers.

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