Carotid Ultrasound to Identify Head and Neck Cancer Survivors With High Cardiovascular Risk After Radiation Therapy

Carotid ultrasound will be done to both sides of the neck to look at the carotid arteries.

This optional blood draw could occur anytime from the time of enrollment on the study until 90 days after the research ultrasound.

Participants will complete a 15-minute survey about how acceptable participants find the ultrasound procedure, whether participants would be open to it in the future if a doctor thought it was necessary, whether participants would be open to getting treatment for artery problems, and how participants feel about their own risk of stroke.