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DOI:10.2214/AJR.07.3076
AJR 2008; 191:243-246
© American Roentgen Ray Society

Technical Innovation

Unenhanced MR Angiography of the Renal Arteries with Balanced Steady-State Free Precession Dixon Method

Randall B. Stafford1,2, Mohammad Sabati2,3,4, Michael J. Haakstad2, Houman Mahallati2,3 and Richard Frayne1,2,3,4

1 Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada.
2 Seaman Family MR Research Centre, 1403 29th St. NW, Calgary, AB T2N 2T9, Canada.
3 Department of Radiology, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
4 Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.

OBJECTIVE. The purpose of this study was to evaluate the feasibility of a novel technique for fat–water separation to image the renal arteries without using a contrast agent.

CONCLUSION. Five healthy volunteers were imaged on a 3-T clinical MR scanner using the balanced steady-state free precession (SSFP) Dixon method. We were able to image the proximal renal arteries with high conspicuity within a 3-minute overall scanning time. The balanced-SSFP Dixon method shows potential for unenhanced MR angiography of the proximal renal arteries.

Keywords: balanced steady-state free precession • Dixon method • MRI • renal arteries • unenhanced MR angiography


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