Fig. 6From: Dynamic evaluation of unruptured intracranial aneurysms by 4D-CT angiography: comparison with digital subtraction angiography (DSA) and surgical findings A-B CTA showed a right MCA-M1 aneurysm (7.6 mm x 5.1 mm), and a tiny pulsation was observed by 4D-CTA (indicated by the white arrow. C-D photographs obtained during surgery, small vesicles shaped convex were seen intra-operation (as indicated by the white arrow), intra-operational findings confirmed that the abnormal pulsation site is an at-risk aneurysmal wallBack to article page