Document Assessment
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Figure 2. Type B aortic dissection
Type B aortic dissection (TBAD) with visualization of entry tear (arrow) in the descending thoracic
aorta.
Figure 1. Aortic Dissection
A, ree-dimensional computed tomography angiography (CTA) reconstruction of an aortic
dissection (arrow) involving the aortic arch. B, Coronal CTA image of this same aortic dissection
clearly demonstrating the location of the primary tear in the arch (arrow).
Neither the DeBakey nor the Stanford system classification scheme addresses aortic dissections that
originate in the arch. In arch dissections, the dissection flap or intramural hematoma (IMH) typically
involves the transverse arch and oen spares the proximal ascending aorta.
