A technician identified as a sonographer conducts a carotid ultrasound with a small, handheld unit known as a transducer. The transducer emits audio waves and data the echo because the waves bounce off tissues, organs and blood cells. Vascular Surgeon has claimed a repeat ct angiography to generally be carried https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/