Nuclear magnetic resonance imaging in evaluation and follow-up of children treated for coarctation of the aorta

Electrocardiographic-gated nuclear magnetic resonance imaging was used to evaluate 10 patients, aged 2.5 to 18 years, with coarctation of the aorta. Six patients had balloon dilation angioplasty, one had surgical repair and three are awaiting treatment. Imaging studies were performed before and after therapy in three patients. In all pretreatment studies, the sagittal and 60 degrees left anterior oblique imaging planes adequately revealed the anatomy of the coarctation. Post-treatment imaging studies demonstrated effective relief of the coarctation in all cases. In three of the six patients who had balloon angioplasty, there was a variable degree of dilation of the aorta at the site of the previous coarctation. Nuclear magnetic resonance imaging is an effective noninvasive imaging method for visualizing coarctation of the aorta and for follow-up after treatment.

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