title: Susceptibility-weighted imaging: a new tool in the diagnosis and evaluation of abnormalities of the vein of Galen in children.
abstract: We retrospectively identified 9 consecutive children, 3 males and 6 females (age 5.2 ± 6.3 years, range 1 day to 18 years), with known or suspected AVGs who underwent MR imaging, including SWI, at our institution between January 2007 and March 2011. On the SWI sequence, arterialized blood flow was considered to be present in the vein of Galen or its tributaries when these showed abnormal signal hyperintensity from arteriovenous shunting. SWI findings were correlated with findings from DSA studies or findings from time-of-flight or contrast-enhanced MR angiography sequences. SWI was found to accurately differentiate between high-flow and low-flow AVGs and was also useful in characterizing the arterial supply and venous drainage patterns associated with high-flow AVGs.
authors.affiliation: Section of Neuroradiology, Mallinckrodt Institute of Radiology, Washington University, Saint Louis, Missouri, USA. jagad002@umn.edu
authors.forename: B D
authors.initials: BD
authors.lastname: Jagadeesan
authors.forename: D T
authors.initials: DT
authors.lastname: Cross
authors.forename: J E
authors.initials: JE
authors.lastname: Delgado Almandoz
authors.forename: C P
authors.initials: CP
authors.lastname: Derdeyn
authors.forename: D N
authors.initials: DN
authors.lastname: Loy
authors.forename: R C
authors.initials: RC
authors.lastname: McKinstry
authors.forename: T L S
authors.initials: TL
authors.lastname: Benzinger
authors.forename: C J
authors.initials: CJ
authors.lastname: Moran
mesh_terms: D000293:Adolescent; D002550:Cerebral Veins / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D054080:Vein of Galen Malformations / Q000473:pathology*