I had my left carotid artery removed on 10/24/13 due to the tumor being wrapped around it. They can do a cervical angiogram, and a temporary balloon occlusion test to see if he is a candidate of a carotid resection. I passed, and the arterty was removed during the neck dissection, then IORT during surgery, and now going for Chemoradiation with protons. There is risks with all the procedures, but can be done, but may not be done everywhere, and mine was were in NYC. I have one working carotid artery. Sometimes the scanning is not that accurate, and may not involve the carotid artery from my understanding.

Good luck