Aortic coarctation MRI

Aortic coarctation Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Overview

Magnetic resonance imaging (MRI) can define the location and severity of a coarctation. MRI can also detect associated cardiac abnormalities and is used for serial follow-up after surgical repair or balloon angioplasty. MRI is recommended to look for aneurysm formation following repair of a coarctation. MR angiography has almost completely replaced invasive catheter based techniques for evaluating re coarctation. In adults with untreated coarctation blood often reaches the lower body through collaterals, eg. internal thoracic arteries via. the subclavian arteries. Those can be seen on MR or angiography.

Schematic drawing of alternative locations of a coarctation of the aorta, relative to the ductus arteriosus. A: ductal coarctation, B: preductal coarctation, C: postductal coarctation. 1: Aorta ascendens, 2: Arteria pulmonalis, 3: Ductus arteriosus, 4: Aorta descendens, 5: Trunchus brachiocephalicus, 6: Arteria carotis communis sinister, 7: Arteria subclavia sinister

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  [Courtesy of RadsWiki and copylefted]

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  [Courtesy of RadsWiki and copylefted]

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  Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology