Susceptibility-weighted angiography for the detection of high-flow intracranial vascular lesions: preliminary study

Details

Serval ID
serval:BIB_CBC1379DBA12
Type
Article: article from journal or magazin.
Collection
Publications
Title
Susceptibility-weighted angiography for the detection of high-flow intracranial vascular lesions: preliminary study
Journal
Eur Radiol
Author(s)
Hodel J., Blanc R., Rodallec M., Guillonnet A., Gerber S., Pistocchi S., Sitta R., Rabrait C., Zuber M., Pruvo J. P., Zins M., Leclerc X.
ISSN
1432-1084 (Electronic)
ISSN-L
0938-7994
Publication state
Published
Issued date
04/2013
Volume
23
Number
4
Pages
1122-30
Language
english
Notes
Hodel, Jerome
Blanc, Raphael
Rodallec, Mathieu
Guillonnet, Antoine
Gerber, Sophie
Pistocchi, Silvia
Sitta, Remi
Rabrait, Cecile
Zuber, Mathieu
Pruvo, Jean-Pierre
Zins, Marc
Leclerc, Xavier
eng
Germany
2012/11/01
Eur Radiol. 2013 Apr;23(4):1122-30. doi: 10.1007/s00330-012-2690-0. Epub 2012 Oct 31.
Abstract
OBJECTIVES: Susceptibility-weighted magnetic resonance imaging (MRI) sequences may demonstrate various signal intensities of draining veins in cases of high-flow vascular malformation (HFVM), including arteriovenous malformation (AVM) and dural arteriovenous fistula (dAVF). Our objective was to evaluate susceptibility-weighted angiography (SWAN) for the detection of HFVM. METHODS: Fifty-eight consecutive patients with a suspected intracranial vascular malformation were explored with SWAN and post-contrast MRI sequences at 3 T. The diagnosis of slow-flow vascular malformation (SFVM), including developmental venous anomaly (DVA) or brain capillary telangiectasia (BCT), was based on MRI. Patients with suspected HFVM underwent digital subtraction angiography (DSA). SWAN images were analysed by three blinded readers according to a three-point scale of the venous signal. RESULTS: Thirty-one patients presented 35 SFVM (26 DVA and 9 BCT) that systematically appeared hypointense on SWAN images. In patients with atypical MRI findings, DSA revealed one patient with an atypical DVA and 26 patients with HFVM (22 AVM and 4 dAVF). SWAN revealed at least one venous hyperintensity in all patients with HFVM. Agreement between readers was excellent. CONCLUSIONS: SWAN appears reliable for characterising blood flow dynamics in brain veins. In clinical practice, SWAN can routinely rule out HFVM in patients with atypical brain veins.
Keywords
Adult, Aged, *Algorithms, Female, Humans, Image Enhancement/methods, Image Interpretation, Computer-Assisted/*methods, Intracranial Arteriovenous Malformations/*pathology, Magnetic Resonance Angiography/*methods, Male, Middle Aged, Pilot Projects, Reproducibility of Results, Sensitivity and Specificity, Young Adult
Pubmed
Create date
23/02/2024 15:01
Last modification date
24/02/2024 8:35
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