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Abstract #3768

Non-Contrast-Enhanced Renal MRA Using Inflow-Enhanced, Inversion-Recovery at 3T

Thorsten Alexander Bley1,2, Scott Brian Reeder2, Mark Schiebler2, Naoyuki Takei3, Jean H. Brittain4, Thomas Grist2, Christopher J. Francois2

1Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; 2Radiology, University of Wisconsin-Madison, Madison, WI, United States; 3Japan Applied Science Laboratory, GE Healthcare, Tokyo, Japan; 4Applied Science Laboratory, GE Healthcare, Waukesha, WI, United States

This work presents validation of an inflow-enhanced, inversion-recovery (IR) balanced steady state free precession (bSSFP) based non-contrast-enhanced MRA (NCE-MRA) for assessment of renal arteries at 3T in patients with suspected renal artery stenosis or with a history of renal artery transplant. NCE-MRA with inflow-enhanced IR bSSFP produced consistent results and demonstrated moderate agreement with CE-MRA for both readers and strong inter-observer agreement for grading renal artery stenosis >50%.