Abstract
In this short report, we describe the potential contribution of SWI in the noninvasive evaluation of DAVFs. SWI images were compared with DSA for the identification of the location of the fistulous point, the presence of CVR, and the presence of the PPP. In 5 of 6 patients, it was possible to identify the fistulous locations depicted as hyperintensity within venous structures. Cortical venous reflux was underestimated on SWI in 3 cases of robust CVR and not identified in 2 cases of less severe CVR. The PPP seen on angiograms correlated anatomically with increased number, caliber, and tortuosity of hypointense veins seen on SWI. Furthermore, SWI was superior to conventional MR imaging in the detection of these dilated veins. These preliminary results suggest an important role for SWI in the detection and assessment of the complex hemodynamics associated with DAVFs.
Highlights
ObjectivesOur aim was to retrospectively evaluate the use of SWI in DAVF characterization
In 5 of 6 patients, SWI could demonstrate the location of the fistulous point revealed by hyperintensity within the venous structures
Conclusions we present a small series of patients, our preliminary experience consolidates previous reports on the role of SWI in the diagnosis of DAVF
Summary
Our aim was to retrospectively evaluate the use of SWI in DAVF characterization
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