Fluoroscopic Contrast-Enhanced MR Angiography with a Magnetization-Prepared 
Steady-State Free Precession Technique in Peripheral Arterial Occlusive Disease

Huegli, RW; Anschwanden, M; Scheffler, K; Bilecen, D

doi:10.2214/AJR.05.1183

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Fluoroscopic Contrast-Enhanced MR Angiography with a Magnetization-Prepared Steady-State Free Precession Technique in Peripheral Arterial Occlusive Disease

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Huegli, R., Anschwanden, M., Scheffler, K., & Bilecen, D. (2006). Fluoroscopic Contrast-Enhanced MR Angiography with a Magnetization-Prepared Steady-State Free Precession Technique in Peripheral Arterial Occlusive Disease. American Journal of Roentgenology, 187(1), 242-247. doi:10.2214/AJR.05.1183.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-D0D3-C

Abstract

OBJECTIVE. The objective of our study was to evaluate the feasibility of intraarterial (IA) near-real-time contrast-enhanced MR angiography (CE-MRA) with a frame rate of 1.3 frames per second in seven patients with lower extremity peripheral arterial occlusive disease (PAOD). For optimized background suppression, a modified 2D steady-state free precession (SSFP) technique with magnetization preparation and mask subtraction was developed. The femoropopliteal and infrapopliteal arteries were covered in two separate steps. Acceptable contrast-to-noise ratios were obtained, and road maps were reconstructed from the same data set.
CONCLUSION. Mastering IA near-real-time CE-MRA, including road map reconstruction, with an SSFP technique in the lower extremity of patients with PAOD is an important building block toward successfully performing endovascular catheter MR-guided interventions.