Catheter-directed gadolinium-enhanced MR angiography.
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.
Omary
Reed A
RA
Department of Radiology, Northwestern University Medical School, Chicago, IL 60611, USA. romary@radiology.northwestern.edu
Green
Jordin
J
Finn
J Paul
JP
Li
Debiao
D
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*
D003287:Contrast Media; D005682:Gadolinium