MRI Study After Arterial Switch Operation in Patients With Transposition of the Great Arteries

MRI Study After Arterial Switch Operation in Patients With Transposition of the Great Arteries

This study involves adolescents operated with arterial switch procedure for transposition of the great arteries during the neonatal period. The purpose is to evaluate the coronary arteries and direct and indirect findings of coronary artery disease/complications with 3 tesla magnetic resonance imaging.

This study involves adolescents operated with arterial switch procedure for transposition of the great arteries during the neonatal period. The patients were operated with two different methods of re-implantation of the coronary arteries ("trap-door"/non-"trap-door", see description below).

Inclusion Criteria:

• Clinical diagnosis of transposition of the great arteries with or without ventricular septum defect
• Surgically corrected during neonatal period with arterial switch procedure

Partial or total Exclusion Criteria:

• Heart arrhythmias
• Known allergic reaction to gadolinium based contrast media
• Reduced renal function (below 60 ml/min/1,73m2)