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Published online before print February 21, 2006, 10.1148/radiol.2383050058
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(Radiology 2006;239:263-268.)
© RSNA, 2006

Technical Developments

Renal Arteries: Comparison of Steady-State Free Precession MR Angiography and Contrast-enhanced MR Angiography1

Christoph U. Herborn, MD, David M. Watkins, MD, Val M. Runge, MD, Jilene M. Gendron, RT, Mark L. Montgomery, MD and L. Gill Naul, MD

1 From the Department of Radiology, Scott and White Clinic and Hospital, Texas A&M University, Temple, Tex. Received January 17, 2005; revision requested March 18; revision received April 18; accepted June 1. Address correspondence to C.U.H., Department of Diagnostic and Interventional Radiology, University Medical Center Hamburg-Eppendorf, Martinistr 52, 20246 Hamburg, Germany (e-mail: herborn{at}uke.uni-hamburg.de).

All participants provided informed consent to participate in this study, which was approved by the institutional review board. Breath-hold three-dimensional (3D) steady-state free precession (SSFP) magnetic resonance (MR) angiography was compared with 3D contrast material–enhanced MR angiography in patients suspected of having renal artery stenosis. Two radiologists assessed visualization of renal arteries and detection of vascular disease. With SSFP MR angiography, 39 of 41 renal arteries in 19 patients were correctly detected. Relevant stenoses were correctly identified with SSFP MR angiography in two patients. In two patients, SSFP MR angiographic data sets led to false-positive overgrading of vascular disease. Fast breath-hold 3D SSFP MR angiography appears to be feasible for MR angiography of renal arteries.

© RSNA, 2006




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