PMC5417278_01
T2 weighted MRI images demonstrating ischemia in A, Right and left thalamic and subthalamic areas. B, Left cerebellar lobe. C, Right and left occipital lobes.
10.1177_2329048X16674597-fig1.jpg
PMC5417278_01_10.1177_2329048X16674597-fig1.jpg
fig1-2329048X16674597
Selected MRI images are presented in Figure 1.
A, 3D reconstruction shows non-dominant left vertebral artery and patent right vertebral and basilar arteries. B, Close up 3D reconstruction of left vertebral artery. Occipital bony spicule is revealed in close proximity to left vertebral artery.
10.1177_2329048X16674597-fig2.jpg
PMC5417278_01_10.1177_2329048X16674597-fig2.jpg
fig2-2329048X16674597
These images showing the left vertebral artery and the occipital bony spicule are presented as Figure 2.
A, Pre-procedure angiography confirming patency and adequacy of collateral circulation. B, Post-embolization angiography confirming left vertebral artery occlusion and patency of right vertebral collateral circulation.
10.1177_2329048X16674597-fig3.jpg
PMC5417278_01_10.1177_2329048X16674597-fig3.jpg
fig3-2329048X16674597
Preoperative angiography showing a nondominant left vertebral artery and a dominant right vertebral artery is pictured in Figure 3, along with postoperative angiography demonstrating sufficient collateral circulation.