[Clinical usefulness of multi-planar reconstruction images of three-dimensional computed tomographic angiography for internal carotid artery aneurysms].
No Shinkei Geka
; 30(3): 293-9, 2002 Mar.
Article
en Ja
| MEDLINE
| ID: mdl-11905022
The usefulness of multi-planar reconstruction (MPR) images of three-dimensional computed tomographic angiography (3D-CTA) for the diagnosis of internal carotid artery (ICA) aneurysms is described. Eleven unruptured ICA aneurysms including six cases of IC-cavernous aneurysm, two cases of IC-ophthalmic artery aneurysm, two cases of IC-posterior communicating artery aneurysm and one cases of IC-anterior choroidal artery aneurysm, were examined by magnetic resonance angiography (MRA), digital subtraction angiography (DSA), 3D-CTA and its MPR images. 3D-CTA and DSA were useful to identify the aneurysmal neck in small aneurysms, but it was difficult to identify the aneurysmal neck in small aneurysms by 3D-CTA-MPR images. DSA and MRA were not useful for identifying the aneurysmal neck in aneurysms more than 10 mm in diameter, as a precise viewing of the neck could not be found due to their large size. For large aneurysms, neither was 3D-CTA useful for identifying the aneurysmal neck when their large size and surrounding bony structures overlapped the aneurysmal neck. On the other hand, 3D-CTA-MPR was very useful for identifying the aneurysmal neck without overlapping by surrounding bony structures. 3D-CTA-MPR images clearly visualized the calcification of the wall. 3D-CTA-MPR images are obtained from 3D-CTA source images without any additional stress to the patients, and they are more useful for the diagnosis as well as demonstration of the aneurysmal neck particularly in more than large aneurysms.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Procesamiento de Imagen Asistido por Computador
/
Arteria Carótida Interna
/
Tomografía Computarizada por Rayos X
/
Aneurisma Intracraneal
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Ja
Revista:
No Shinkei Geka
Año:
2002
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Japón