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Chapter 16 - Abdomen-pelvis MRA
from Section 4 - MRI angiography
Published online by Cambridge University Press: 05 November 2012
Summary
Chest/abdomen (aorta) MRA protocol
Indications
This protocol is used for routine evaluation of the aorta from the aortic root to the iliac bifurcation, typically to evaluate for aneurysm and/or dissection. The protocol is remarkably similar to that of the chest MRA, but requires two injections of contrast to obtain arterial phase imaging of both the thoracic and abdominal aorta. We inject 0.1 mmol/kg gadobenate dimeglumine for each.
Preparation
IV contrast agent: Gadobenate dimeglumine 0.2 mmol/kg (total) at 2 cc/s
Oral contrast agent: None
2 L nasal oxygen
At least 22-gauge IV; connect to power injector
Scan with patient's arms overhead, if patient can tolerate, for smallest field of view possible
All sequences are cardiac-gated except the SPGRs.
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- Practical Body MRIProtocols, Applications and Image Interpretation, pp. 144 - 151Publisher: Cambridge University PressPrint publication year: 2012