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Three-dimensional time-of-flight (3D TOF) magnetic resonance angiography (MRA) and contrast-enhanced MRA of intracranial aneurysms treated with platinum coils.
Wikström, J; Ronne-Engström, E; Gal, G; Enblad, P; Tovi, M.
Afiliación
  • Wikström J; Department of Radiology, Uppsala University Hospital, Uppsala, Sweden. johan.wikstrom@radiol.uu.se
Acta Radiol ; 49(2): 190-6, 2008 Mar.
Article en En | MEDLINE | ID: mdl-18300146
BACKGROUND: Contrast-enhanced magnetic resonance angiography (CE-MRA) is less prone to flow-related signal intensity loss than three-dimensional time-of-flight (3D TOF) MRA and may therefore be more sensitive for detection of residual patency in platinum coil-treated intracranial aneurysms. PURPOSE: To compare MRA and CE-MRA in the follow-up of intracranial aneurysms treated with platinum coils. MATERIAL AND METHODS: CE-MRA and 3D TOF MRA (pre- and postcontrast injection) of the intracranial vasculature was performed at 1.5T in 38 patients (47 aneurysms) referred for DSA in the follow-up of coiled intracranial aneurysms. RESULTS: DSA showed aneurysm patency in 22/47 investigations. Patent aneurysm components were observed with CE-MRA in 18/22 cases, and with 3D TOF MRA in 21/22 cases. There was no significant difference in patent aneurysm component size between CE-MRA and 3D TOF MRA. In addition, CE-MRA showed six, 3D TOF MRA before contrast injection showed seven, and 3D TOF MRA after contrast injection showed eight cases with patent aneurysm components not observed on DSA. CONCLUSION: 3D TOF MRA was highly sensitive for detection of patent aneurysm components, and at least as sensitive as CE-MRA. Residual aneurysm patency seems to be better visualized with MRA than with DSA in some cases.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Platino (Metal) / Aneurisma Intracraneal / Angiografía por Resonancia Magnética / Imagenología Tridimensional / Embolización Terapéutica Tipo de estudio: Diagnostic_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: Acta Radiol Año: 2008 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Platino (Metal) / Aneurisma Intracraneal / Angiografía por Resonancia Magnética / Imagenología Tridimensional / Embolización Terapéutica Tipo de estudio: Diagnostic_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: Acta Radiol Año: 2008 Tipo del documento: Article País de afiliación: Suecia Pais de publicación: Reino Unido