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Abstract #3876

Noncontrast MRA of Abdominopelvic Arteries Using Quadruple Inversion-Recovery Preconditioning and 3D Balanced Steady-State Free Precession Imaging at 3T

Marc D Lindley 1 , Daniel Kim 1 , Glen Morrell 1 , Marta E Heilbrun 1 , Christopher J Hanrahan 1 , and Vivian S Lee 1

1 UCAIR, Radiology, University of Utah, Salt Lake City, Utah, United States

Non-contrast (NC) abdominal MRA using quadruple inversion-recovery (QIR) magnetization preparation and 3D balanced SSFP readout has been developed and evaluated at 1.5T. NC-MRA at 3T presents an opportunity to increase the overall signal-to-noise ratio. We modified the imaging protocol to make QIR NC-MRA compatible at 3T. In one volunteers, both 1.5T and 3T QIR-NC MRA results exhibited similarly high quality maximum-intensity-projection (MIP). In one patient with vascular disease, QIR-NC MRA and contrast-enhanced MRA exhibited similarly high quality MIP at 3T. This study suggests that it is feasible to perform high-quality QIR-NC MRA at 3T.

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