Giant Intracranial Aneurysms at 7T MRI.
AJNR Am J Neuroradiol
; 37(4): 636-41, 2016 Apr.
Article
en En
| MEDLINE
| ID: mdl-26564437
ABSTRACT
Giant intracranial aneurysms are rare vascular pathologies associated with high morbidity and mortality. The purpose of this in vivo study was to assess giant intracranial aneurysms and their wall microstructure by 7T MR imaging, previously only visualized in histopathologic examinations. Seven giant intracranial aneurysms were evaluated, and 2 aneurysms were available for histopathologic examination. Six of 7 (85.7%) showed intraluminal thrombus of various sizes. Aneurysm walls were depicted as hypointense in TOF-MRA and SWI sequences with excellent contrast ratios to adjacent brain parenchyma (range, 0.01-0.60 and 0.58-0.96, respectively). The triple-layered microstructure of the aneurysm walls was visualized in all aneurysms in TOF-MRA and SWI. This could be related to iron deposition in the wall, similar to the findings in 2 available histopathologic specimens. In vivo 7T TOF-MRA and SWI can delineate the aneurysm wall and the triple-layered wall microstructure in giant intracranial aneurysms.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aneurisma Intracraneal
/
Angiografía por Resonancia Magnética
Límite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
AJNR Am J Neuroradiol
Año:
2016
Tipo del documento:
Article