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(a) and (b) Are 3-dimensional rotational angiograms that better demonstrate the angioarchitecture of the aneurysm, and also reveal a second more proximal aneurysm on the clinoidal segment of the ICA. (c) Following clip ligation of the aneurysm, intraoperative angiography showed complete occlusion of the ICA. The clips were immediately removed and re-configured. (d) Repeat intraoperative angiography documents patency of the ICA and complete obliteration of both aneurysms.

(a) and (b) Are 3-dimensional rotational angiograms that better demonstrate the angioarchitecture of the aneurysm, and also reveal a second more proximal aneurysm on the clinoidal segment of the ICA. (c) Following clip ligation of the aneurysm, intraoperative angiography showed complete occlusion of the ICA. The clips were immediately removed and re-configured. (d) Repeat intraoperative angiography documents patency of the ICA and complete obliteration of both aneurysms.