title: Computed tomographic demonstration of the effect of proximal parent artery ligation for giant intracranial aneurysms.
abstract: Four patients with giant intracranial aneurysms, which measured over 2.5 cm in diameter, were treated by ligation of the proximal parent artery. The location of the aneurysms were intracavernous in two patients, paraophthalmic in one patient, and vertebral in the other patient. The effect of ligation was followed by repeated computed tomography scans with angiographic correlation. The aneurysms thrombosed soon after ligation, and with time, gradually organized with a reversal of the mass effect. Five years after the ligation, one aneurysm thrombosed completely and lost its mass effect upon the adjacent structures. For giant aneurysms treated with ligation of the proximal parent artery, computed tomography scans are a useful method for continuing review, producing precise information concerning actual size, thrombus formation, and various pathological changes.
mesh_terms: D000328:Adult; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000601:surgery; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging / Q000601:surgery; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D008026:Ligation; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000000981:diagnostic imaging / Q000601:surgery