title: Catheter-directed gadolinium-enhanced MR angiography.
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.
authors.affiliation: Department of Radiology, Northwestern University Medical School, Chicago, IL 60611, USA. romary@radiology.northwestern.edu
authors.forename: Reed A
authors.initials: RA
authors.lastname: Omary
authors.forename: Jordin
authors.initials: J
authors.lastname: Green
authors.forename: J Paul
authors.initials: JP
authors.lastname: Finn
authors.forename: Debiao
authors.initials: D
authors.lastname: Li
mesh_terms: D002404:Catheterization; D003287:Contrast Media / Q000008:administration & dosage; D005682:Gadolinium / Q000008:administration & dosage; D006801:Humans; D007267:Injections / Q000379:methods; D018810:Magnetic Resonance Angiography / Q000295:instrumentation* / Q000379:methods*
chemical_list: D003287:Contrast Media; D005682:Gadolinium