FIG 2. Unruptured aneurysm of the right carotid termination.

A, DSA image, anterior projection, right internal carotid injection, shows the aneurysm (arrowhead) before embolization.

B, Four months after treatment, the aneurysm is subtotally packed with electrolytically detachable coils. The remnant cavity (arrow) is faintly seen through the subtracted coil mass.

C, MR angiogram, targeted parasagittal MIP reconstruction, clearly shows the remnant cavity (arrow).