FIG. 2.

Case 2. Initial DSA shows an irregularly shaped BA, indicating dissection, and an aneurysm is observed (arrow) (A). Vessel wall imaging shows aneurysm wall enhancement in the BA, and morphological changes at the dissection site over time (B) (arrow 1: the day of onset, arrow 2: day 4, arrow 3: day 10). High-resolution cone-beam CT shows an intimal flap (arrow) and pseudoaneurysmal dilatation (arrowhead), which led to the final diagnosis of a ruptured dissecting aneurysm (C). DSA after full deployment of the LVIS stent and coil embolization shows the distribution of the coils into the aneurysm and pseudo-lumen (arrow) (D). DSA shows complete obliteration (arrow) and preservation of the BA (E). Cone-beam CT shows stent deployment and coil positions (F, arrow).