Fig. 4
From: Traumatic facial arteriovenous fistula: a rare case report and literature review
Angiograms in the second endovascular treatment. (A, B) The angiograms indicate the two microcatheters reaching the proximal and distal ends of the fistula guided by the microguide wire, and releasing the three coils. (C, D) Angiography after proximal microcatheter injection of Onyx indicated that the fistula was not completely occluded. (E, F) The angiograms reveal the distal injection of Onyx until there is no abnormal flow through the fistula orifice