Fig. 2
Simulating procedure on printed three dimension model. A Subtemporal keyhole approach of right side. The depth of aneurysm is 7 cm from temporal bone. B The length of visible basilar artery is 5 mm between petrosal apex and neck of aneurysm under the microsurgical corridor. C The aneurysm can be clipped by longer clip after retraction of isplateral superior cerebellar artery. D Relationship of clip and surrounding vascular structures after simulating clip application