898052.fig.001
Figure 1: (a) Preoperative 3D digital subtraction angiogram (DSA) of a left 6.6 mm pericallosal UIA. 54-year-old female patient had prior history of SAH and harbored multiple smaller aneurysms on the right. Endovascular coiling was chosen. (b) Postoperative 3D DSA. Treatment achieved 99% occlusion.