DAVF Angio
DSA Angiographic Findings:
Left ECA Injection: demonstrates early venous drainage and multiple distended vessels which drains into superficial cortical veins.
There is non-opacification of the left transverse and sigmoid sinus
Sole drainage through the right sinus: causes further congestion as blood is only exiting from one side.
Corticovenous reflux (CVR)
Distended cortical veins
Superficial venous drainage pathway
Borden Classification: type III - direct drainage into subarachnoid veins or into an isolated segment of the venous sinus (which results from a thrombosis on either side of the dural sinus segment)
equivalent to Cognard type III, IV and V
Treatment Approach:
Coiling of the isolated segment through a transcranial (burr hole) approach. The isolated portion of the transverse sinus was directly injected.
Accession: CL0436
Study description: IR EMBOLIZE INTRACRANIAL AVM=VAS
