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Interrupted aortic arch: diagnosis with gadolinium-enhanced 3D MRA
K J Roche1, G Krinsky, V S Lee
1Department of Radiology/MRI, New York University Medical Center, NY 10016, USA.
Journal of Computer Assisted Tomography
|March 30, 1999
Summary
Gadolinium-enhanced 3D MR angiography (MRA) offers a rapid diagnosis for interrupted aortic arch (IAA). This technique is beneficial for unstable pediatric patients, minimizing their time in the MR suite.
Area of Science:
- Cardiovascular Imaging
- Pediatric Radiology
Background:
- Interrupted aortic arch (IAA) is a critical congenital heart defect.
- Accurate and timely diagnosis is essential for patient management.
Purpose of the Study:
- To evaluate the utility of gadolinium-enhanced 3D MR angiography (MRA) for diagnosing interrupted aortic arch (IAA).
Main Methods:
- Retrospective review of three patients diagnosed with IAA over a one-year period.
- All patients underwent 1.5 T 3D spoiled gradient echo MRA after gadolinium administration.
- Surgical correlation was obtained for all cases.
Main Results:
- MRA identified IAA in all three patients, including associated anomalies like aberrant right subclavian artery and patent truncus arteriosus.
- One case of IAA was diagnosed post-mediastinal surgery, suggesting ligation.
- MRA detected an unsuspected aberrant right subclavian artery not seen on echocardiography.
Conclusions:
- Gadolinium-enhanced 3D MRA provides a rapid and effective method for diagnosing IAA.
- The technique's speed is advantageous for unstable pediatric patients, reducing MR suite time.