Bharathi Dasan Jagadeesan1, Josser E.
Delgado Almandoz2, Tammie Benzinger2, Christopher Moran2
1Neuroradiology, Washington University
School of Medicine , St Louis, MO, United States; 2Neuroradiology,
Washington University School of Medicine, St Louis, MO, United States
We
retrospectively evaluated the utility of susceptibility weighted imaging
(SWI) in the detection of arterio-venous shunting (AVS) in 47 patients with
66 brain vascular malformations (BVM) identified on digital subtraction
angiography (DSA). AVS was considered to be present if there was
hyperintensity in a vein adjacent to the BVM. Overall, SWI had a sensitivity
of 93%, specificity of 100% and accuracy of 97% for the detection of AVS. In
the 13 BVMs associated with hemorrhage, SWI had sensitivity and specificity
of 100%. In the 53 BVMs not associated with hemorrhage, SWI had a sensitivity
of 92% and specificity of 100%.