Arquivos de Neuro-Psiquiatria
On-line version ISSN 1678-4227
ARAUJO, IVAN SOARES DE. Three-dimensional computed tomographic angiography as preoperative examination for cerebral aneurysms treatment. Arq. Neuro-Psiquiatr. [online]. 1998, vol.56, n.4, pp. 798-802. ISSN 1678-4227. http://dx.doi.org/10.1590/S0004-282X1998000500015.
This study is based on 36 cases selected from the radiological clinic of the Free-University of Berlin and shows the advantages of spiral CT angiography over conventional cerebral angiography which provides only a few limited anatomical views: frontal, lateral and oblique. With CTA (computerized tomographic angiography) it is possible to obtain 360 degress reformatted images in all directions getting large number of projections and showing the neck of aneurysms and its relation to vessels and the fundus in relation to the neck. CTA also depicts aneurysms in relation to bone or portions of it along the base of the skull. The CTA achieves so good sensibility as the cerebral angiography does and is used as preoperative examination for the cerebral aneurysms treatment.
Keywords : three-dimensional computed tomographic angiography; cerebral angiography; intracranial aneurysms.