Thoracic aortic dissection occurs when the intima of the aorta becomes compromised and “tears” or “dissects” a new layer that fills with blood between the intima and the media. This ...

A CT provides valuable information about your aorta, such as the location and size of an aneurysm or dissection. Magnetic resonance imaging (MRI), or magnetic resonance angiography (MRA), is another ...