Occipital artery bypass importance in unsuitable superficial temporal artery: Two case reports

Figure 2 Case 2 perioperative imaging. A: Initial transfemoral cerebral angiography (TFCA) indicated right middle cerebral artery (MCA) occlusion (yellow arrow); b: The right superficial temporal artery was thin with weak flow (yellow arrow); however, the occipital artery (OA) was prominent (black arrows); C-F: After the OA-MCA bypass, blood flow at the surgical site was intact on postoperative TFCA (D and E; yellow arrows), with a perfusion defect improvement on postoperative perfusion magnetic resonance imaging compared with the preoperative scan (C and F; yellow arrows).