PMC5340927_01
After foraminectomy the catheter was clearly seen advancing through the vertebral artery. The black arrow shows the side of the catheter.
cvja-27-e18-g001.jpg
PMC5340927_01_cvja-27-e18-g001.jpg
F1
This region was cleared and it was established that the catheter had advanced through the vertebral artery and was in the subclavian artery (Fig. 1).