Fig 2.

A–E, Basilar bifurcation aneurysm #13 (female patient; age, 43 years; survival, 36 days) with a subjective occlusion rate of 95% and a computerized occlusion rate of 89%. A, Preinterventional anteroposterior angiograph. Band C, Enlarged details of the postembolization anteroposterior DSA, the aneurysmal border in red and neck plane outlined with red arrows. C, Residual filling (green areas) in the aneurysmal neck region. D and E, Enlarged details of the postembolization lateral DSA projection, showing a larger contrast medium inflow area (green in 2E) between coil loops protruding caudally over the neck plane. F and G, Micrographs (bar 5 mm) of 1 surface-stained ground section of aneurysm #13 through the neck region and 1 parent artery (PA). F, Note the attenuated blue-stained fibrin clot (FI) and red thrombus (RT) in the center, and the subarachnoid hemorrhage (SAH). G, Aneurysmal border, orifice plane, and metallic coil sections are outlined and labeled in red. Some coil loops are protruding the orifice plane, and the inflow area, appearing pale stained without red thrombus in 2F, is labeled in green.