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Intraarterial Versus IV Gadolinium Injections for MR Angiography: Quantitative and Qualitative Assessment of the Infrainguinal Arteries

¹ Biocenter, University of Basel, Basel, Switzerland.
² Institute of Diagnostic Radiology, University Hospital of Basel, Petersgraben 4, Basel, Switzerland 4031.
³ Department of Angiology, University Hospital of Basel, Basel, Switzerland.
⁴ Hochrheinklinik, Bad Saeckingen, Germany.

OBJECTIVE. Our purpose was to quantitatively and qualitatively compare 3D intraarterial (IA) gadolinium-enhanced MR angiography (IA MRA) versus the standard of reference of MR angiography, 3D IV gadolinium-enhanced MR angiography (IV MRA), in patients with peripheral arterial occlusive disease (PAOD) for use during catheter-based MR-guided endovascular interventions.

CONCLUSION. IA MRA provides image quality of the infrainguinal arteries in PAOD patients comparable to IV MRA with a significantly improved assessment of the infrapopliteal arteries due to reduced venous contamination. Further benefits of IA MRA include usage of only very low doses of gadolinium and simplified bolus timing.

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