Purpose/ Objective

Transposition of the great arteries is one form of congenital heart disease where standard non-invasive imaging techniques such as transthoracic echocardiography may not be able to fully characterize the underlying anatomy or ventricular function. This is particularly true in adult patients who have undergone surgical repair, either via the arterial switch or atrial switch procedures.  When performed with attention to certain details, CMR can improve the clinician’s understanding of the anatomy and resultant physiology in patients with TGA both prior to and following surgical repair. Following this activity, learners will understand the role of CMR in evaluating transposition of great arteries, be able provide examples of how CMR can help with functional evaluation in patients that have undergone surgical repair of TGA, and discuss protocols for CMR exam in patients transposition of great arteries, before and after surgical repair.

Accreditation Statement

The Society for Cardiovascular Magnetic Resonance (SCMR) is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

Credit Designation Statement

The Society for Cardiovascular Magnetic Resonance (SCMR) designates this enduring material for a maximum of 0.75 AMA PRA Category 1 Credit (s)™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Instructions for Claiming CME

• Attend the sessions in full for which credit is sought
• Complete the post-activity evaluation
• A certificate of completion will be available once the evaluation is submitted

Financial Disclosures

The planners and faculty for this activity did not have any relevant relationships to disclose, unless listed below:
 

Dr. Crean received research grants from Genzyme and Toshiba.

Any resulting conflicts of interest were resolved prior to the start of the activity according to ACCME Criteria & Standards.

Disclosure of Commercial Support

SCMR received no funding to support this activity.

Bibliography

• Tobler, et al. Cardiac Outcomes in Young Adult Survivors of the Arterial Switch Operation for Transposition of the Great Arteries, Journal of the American College of Cardiology, vol 56, No 1, 2010
• Manso, et al. Myocardial perfusion magnetic resonance imaging for detecting coronary function anomalies in asymptomatic paediatric patients with previous arterial switch operation for the transposition of great arteries, Cardiology in the Young (2010), 20, 410-417
• Tobler et al, Evaluation of a comprehensive cardiovascular magnetic resonance protocal in young adults late after the arterial switch operations for d-transposition of the great arteries JCMR 2014, 16:98
• Roman et al. Ped Radiol 2005
• Buechel et al. JCMR 2009
• Greil et al. JCMR 2007
• Ho et al. Congenit Heart Dis 2012
• Patek et al. Congenit Heart Dis 2011
• Muzzarelli et al. J Thorac Imaging 2012
• Gutberlet et al. Radiologe 2011
• Brickner ME et al. NEJM (2000) 342;4
• Hoffmann, Grothoff, Gulberlet, et al. 2011 unpuplished
• Doctoral thesis Jamime Hoffmann and Homung , et al. Gatzoullis
• Mussato, Wernovsky Cardiol Young 2005
• Gutberlet et al. Radiology 214(200);467-475
• Taylor et al. Radiology 2005