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Images obtained in a 64-year-old woman with SAH. A, 3D volume-rendered CTA image in frontal view shows 2 aneurysms: a large left-ruptured ICA bifurcation aneurysm with the A1 segment from the anterior cerebral artery arising from the sac (arrow) and a small left unruptured posterior communicating artery aneurysm (line). B, Frontal projection from pre-embolization DSA shows the same aneurysms as in A.
