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Figure 7d. Acute Stanford type B dissection. (a) DSA image shows a Stanford type B dissection with the false lumen (*) compressing the true lumen (arrows). (b) DSA image shows that the celiac trunk (C) and right renal artery (RRA) are supplied by the true lumen. Note the presence of a reentry tear (arrow) in the abdominal aorta. The left renal artery (LRA) is supplied by the false lumen. (c) Pretreatment CT scan shows that the dissection extends from the origin of the descending aorta, distal to the LSA origin. * = false lumen. (d) Pretreatment CT scan shows that the true lumen is compressed and gives rise to the superior mesenteric artery. * = false lumen. (e) CT scan obtained at 6-month follow-up shows complete regression of the dissection after exclusion of the entry site. (f ) CT scan obtained at 6-month follow-up shows repressurization of the true lumen and shrinkage of the thrombosed false lumen (*).
