TECHNOLOGIST PRESENTATION Open Access

Imaging strategies of coarctation repairsMichelle F Walkden*, Alison Fletcher, Charles Peebles, James Shambrook, Stephen Harden

From 16th Annual SCMR Scientific SessionsSan Francisco, CA, USA. 31 January - 3 February 2013

BackgroundCoarctation is a common cardiovascular lesion accountingfor 5 - 7% of all congenital heart disease. Without appro-priate treatment complications are common and up to90% of patients with uncorrected coarctation die by theage of 60.After repair close follow-up of patients is recom-

mended. Recognised complications may include residualor recurrent coarctation and aneurysm formation. Followup of associated aortic valve disease is also required.MRI is the preferred imaging modality for coarctation

repairs as it provides anatomical and functional informa-tion without radiation exposure. It may also aid planningfor further intervention or surgical treatment wherenecessary.Available sequences;Cine images- Steady State Free Precession (SSFP) or

Gradient Recalled Echo (GRE) sequences, providing anato-mical and functional information.Black Blood Fast Spin Echo (FSE) provides good visuali-

zation of the vessel wall and is less susceptible to metalartefact and is therefore particularly useful followingstenting.Magnetic Resonance Angiography (MRA) either Con-

trast Enhanced or Free- breathing ECG triggered, naviga-tor-gated 3D segmented SSFP. Both provide a 3D volumeof data. This may be reformatted to any plane.Phase Contrast imaging allows for assessment of blood

flow and further physiological evaluation.

MethodsIn our dedicated Cardiac MR (CMR) unit, we have retro-spectively evaluated studies from the past 6 years, wherepatients have had coarctation repair. With particularemphasis on the sequences used in relation to the type ofrepair. We have also looked at associated features of theaortic valve and left ventricle.

ResultsWe will present a comprehensive imaging guide, highlight-ing the benefits and deficiencies of the MR sequences usedin coarctation repairs, including common complications.Key learning points;Black Blood (FSE) and GRE are less susceptible to metal

artefact therefore improve visualization around the stent.CE-MRA or Navigator SSFP may be particularly useful in

visualising aneurysm formation or extra cardiac conduits.

ConclusionsCardiac MR can provide excellent anatomical and func-tional information about coarctation repairs, providingimaging strategies are related to the type of repair done.

FundingNo funding.

Published: 30 January 2013

doi:10.1186/1532-429X-15-S1-T6Cite this article as: Walkden et al.: Imaging strategies of coarctationrepairs. Journal of Cardiovascular Magnetic Resonance 2013 15(Suppl 1):T6.

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Walkden et al. Journal of Cardiovascular MagneticResonance 2013, 15(Suppl 1):T6http://www.jcmr-online.com/content/15/S1/T6

© 2013 Walkden et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the CreativeCommons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, andreproduction in any medium, provided the original work is properly cited.