Non-enhanced MR imaging for preinterventional assessment of the angioarchitecture in vein of Galen malformations.
J Neurointerv Surg
; 10(10): 999-1004, 2018 Oct.
Article
en En
| MEDLINE
| ID: mdl-29436506
ABSTRACT
BACKGROUND AND PURPOSE:
Endovascular treatment of vein of Galen malformations (VGMs) requires sufficient preceding MR imaging. Standardized, preinterventional, non-invasive imaging has not been established. Our study is the first to examine the role of a dedicated, standardized, non-invasive imaging protocol in the evaluation of VGM angioarchitecture by non-contrast MRI/MR angiography. MATERIALS ANDMETHODS:
We retrospectively evaluated a consecutive series of VGM patients who underwent a 1.5 T MRI protocol, including standard T2 weighted images (T2WI), arterial time of flight (TOF), and thin T2WI without flow compensation (T2OffPh). The primary outcome was the proportion of patients in whom VGM subtypes and all arterial feeders (anterior (AChA) and posterior (PChA) choroidal arteries, pericallosal arteries, basilar tip, and leptomeningeal supply) could be accurately identified compared with a DSA gold standard.RESULTS:
A total of 26 VGM patients who underwent 108 studies were used in the statistical analysis. VGM subtype was best seen in axial T2OffPh (92.1%) and TOF (89.8%). AChA feeders were best seen in TOF (86.5%) and axial T2OffPh (72.2%). PChA feeders were best seen in TOF (95.1%) and axial T2OffPh (88.1%). Pericallosal feeders were best seen in axial T2OffPh (95.4%) and TOF (95.1%). Basilar tip feeders were best seen in TOF (90.6%) and axial T2OffPh (88.4%).CONCLUSION:
VGM angioarchitecture is best seen in TOF and axial T2OffPh. It can be used as an alternative to global angiographic series.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
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Angiografía de Substracción Digital
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Angiografía por Resonancia Magnética
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Malformaciones de la Vena de Galeno
Tipo de estudio:
Guideline
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Observational_studies
/
Prognostic_studies
Límite:
Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
J Neurointerv Surg
Año:
2018
Tipo del documento:
Article
País de afiliación:
Alemania