Direct visualization of intracranial aneurysms by computed tomography

Abstract

Twenty seven aneurysms in 25 patients were directly visualized by CT. Thin-walled non-thrombosed aneurysms showed homogeneous sharply-marginated intraluminal enhancement. Partially thromhosed aneurysms had a thickened high-density peripheral rim which was sometimes calcified and enhanced; the intraluminal portion also enhanced but the thrombosed region was isodense and non-enhancing. Completely thrombosed aneurysms showed dense calcification in the peripheral wall with sometimes peripheral but no intraluminal enhancement.