Fig. 2

A Intraoperative angiographic imaging showed the position of the microcatheter tip before Onyx injection. (i–ii, white arrow). Angiography was performed via microcatheter (iii, iv). B Post-embolization angiography demonstrated that the DAVF was occluded completely without nontargeted vessel embolization. C Penetration and solidification of Onyx after embolization (i, ii). A postoperative CT scan showed no new cerebral infarction (iii, iv)