RT Journal Article
SR Electronic
T1 Susceptibility-Weighted Imaging: A New Tool in the Diagnosis and Evaluation of Abnormalities of the Vein of Galen in Children
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1747
OP 1751
DO 10.3174/ajnr.A3058
VO 33
IS 9
A1 B.D. Jagadeesan
A1 D.T. Cross III
A1 J.E. Delgado Almandoz
A1 C.P. Derdeyn
A1 D.N. Loy
A1 R.C. McKinstry
A1 T.L.S. Benzinger
A1 C.J. Moran
YR 2012
UL http://www.ajnr.org/content/33/9/1747.abstract
AB SUMMARY 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. AVGabnormality of the vein of GalenAVSarteriovenous shuntingVGADvein of Galen aneurysmal dilationVGAMvein of Galen aneurysmal malformation