Catheter-directed gadolinium-enhanced MR angiography |
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Authors: | Omary Reed A Green Jordin Finn J Paul Li Debiao |
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Affiliation: | Department of Radiology, Northwestern University Medical School, Chicago, IL 60611, USA. romary@radiology.northwestern.edu |
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Abstract: | In the setting of MRI-guided endovascular interventions, catheter-directed Gd-enhanced MRA offers many of the same capabilities as conventional x-ray DSA. Local injections permit rapid depiction of blood vessels and help guide interventions. The primary benefit of IA injections is significant reduction of administered contrast-agent dose compared with conventional IV injections. Another major benefit is facilitated background suppression, including that of adjacent vascular beds. As MRI guidance methods improve, catheter-based Gd injections should gain expanded use in clinical practice. |
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