case_images: PMC4584440_01
case_images: (a) Preoperative angiogram, right vertebral artery injection, with head in a neutral position anterior-posterior (AP). (b) Preoperative angiogram, right vertebral artery injection, with head in neutral position (lateral)
case_images: SNI-6-147-g001.jpg
case_images: PMC4584440_01_SNI-6-147-g001.jpg
case_images: F1
case_images: Subsequently, the patient underwent a dynamic cerebral angiogram, which revealed complete proximal occlusion of the right vertebral artery with the head turned toward the right [Figures 1a and b and 2a and b].
case_images: (a) Preoperative angiogram, right vertebral artery injection, with head turn rotated right (AP). (b) Preoperative angiogram, right vertebral artery injection, with head turn rotated right (lateral)
case_images: SNI-6-147-g002.jpg
case_images: PMC4584440_01_SNI-6-147-g002.jpg
case_images: F2
case_images: Subsequently, the patient underwent a dynamic cerebral angiogram, which revealed complete proximal occlusion of the right vertebral artery with the head turned toward the right [Figures 1a and b and 2a and b].
case_images: Intraoperative angiogram, right vertebral artery injection, with patient's head in neutral position (AP)
case_images: SNI-6-147-g003.jpg
case_images: PMC4584440_01_SNI-6-147-g003.jpg
case_images: F3
case_images: An intraoperative cerebral angiogram initially imaged the right vertebral artery in neutral position [Figure 3].
case_images: Intraoperative angiogram, right vertebral artery injection, with patient's head fully turned toward the right
case_images: SNI-6-147-g004.jpg
case_images: PMC4584440_01_SNI-6-147-g004.jpg
case_images: F4
case_images: When the head was turned toward the right, the artery maintained normal flow [Figure 4].