A Change of Computed Tomographic Findings of Two Cases of Giant Internal Carotid Artery Aneurysms after Cervical Carotid Artery Occlusion

The effects of cervical carotid artery occlusion on two giant internal carotid artery aneurysms were studied by computed tomography (CT). In both cases, the density on CT findings of the thrombosed parts in the aneurysms were changed with time from hyperdensity in the immediate post operative period to isodensity and finally to decreased density. For giant aneurysms treated with occlusion of the proximal artery, CT scanning is a reliable and atraumatic method for follow-up review, providing precise information concerning actual size, thrombosis, and pathological changes.