CT and MRI in the Evaluation of Thoracic Aortic Diseases
Figure 13
Type B dissection—(a) axial CT scan image in a 65-year-old male shows a dissection flap seen only in the descending thoracic aorta but not in the ascending aorta. (b) Sagittal reconstructed post contrast CT image in the same patient shows a dissection flap that involves the arch and proximal descending thoracic aorta, consistent with Type B dissection. The true lumen is anterior and medial, where the false lumen is posterior to lateral.
