Volume 15 Supplement 1

Abstracts of the 16th Annual SCMR Scientific Sessions

Open Access

Contrast enhanced magnetic resonance angiography in children: initial experience at 3.0 Tesla

  • SN Khan1,
  • C Meehan1,
  • A Plotnik1,
  • I Ayad2,
  • S Patel2,
  • I Boechat1 and
  • P Finn1
Journal of Cardiovascular Magnetic Resonance201315(Suppl 1):W36

https://doi.org/10.1186/1532-429X-15-S1-W36

Published: 30 January 2013

Background

To assess the role of contrast enhanced magnetic resonance angiography (CEMRA) at 3.0T in pediatric patients referred for vascular evaluation, and to compare the technical and diagnostic performance of a clinically similar control group at 1.5T.

Methods

Fifty pediatric patients referred for vascular evaluation and without evidence of congenital heart disease, were evaluated with CEMRA. Thirty-five patients received 37 studies at 3.0T (age 0.4 -16.5 years, mean 5.8 ± 4.7 years. Fifteen patients received 16 studies at 1.5T (age 0.1 - 17.5 years, mean 5.8 ± 6.4 years). CEMRA was performed in three phases: arterial, early venous and late venous. Two independent observers analyzed the studies for image quality, artifacts and vessel definition.

Results

Overall image quality and vessel definition scores were higher at 3.0T than 1.5T in the arterial and early venous phase, however not the late venous phase. Overall diagnostic performance was comparable at both field strengths. Breathing, pulsation and parallel acquisition artifact was found to some extent in all phases, but ventilated patients received significantly higher image quality scores and vessel definition scores than conscious patients.
Figure 1

9 year old male with right vestigial kidney, contrast enhanced MRA performed at 3.0T. Left, 3D volume rendered reconstruction, anterior view, IMA = inferior mesenteric artery. Right, 3D volume rendered reconstruction, posterior view, SMA = superior mesenteric artery, RRA = right renal artery.

Conclusions

CEMRA at 3.0T and 1.5T produces diagnostic quality studies for pre-and post-transplantation vascular assessment in pediatric patients. For optimum image quality and spatial resolution, the use of 3.0T MRA with controlled ventilation is recommended if readily available.

Funding

Siemens Research Grant

Authors’ Affiliations

(1)
Radiology, UCLA
(2)
Anesthesia, UCLA

Copyright

© Khan et al; licensee BioMed Central Ltd. 2013

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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