Carotid Doppler (Carotid Ultrasound) is a diagnostic procedure used to examine the carotid arteries for increased stroke risk. Ultrasound is widely used and captures images in real-time. This non-invasive test is performed by our registered vascular technologist. The patient sits in a reclining chair while the technologist applies a gel to a flat probe moving up and down the neck, taking images of the carotid arteries along the way. The procedure averages about 30 minutes.