Imaging of aortic aneurysms and dissection: CT and MRI

There are numerous approaches to the diagnosis of aortic aneurysms and aort ic dissection. Echocardiography, computed tomography (CT), and magnetic res onance imaging (MRI) have enthusiastic proponents promoting each technique, which to some extent obscures the real value of each technique. This revie w examines the role of these techniques in the diagnosis of aortic disease, with special reference to the most recent published literature and an emph asis on the use of CT and MRI. For most patients with chronic aortic diseas e, MRI is the most appropriate investigation. In acute situations, CT scann ing is usually the most useful technique, with echocardiography added for t hose with ascending aortic disease or cardiac complications.