A technician identified as a sonographer conducts a carotid ultrasound with a small, handheld device named a transducer. The transducer emits sound waves and data the echo given that the waves bounce off tissues, organs and blood cells. Tobacco use. Nicotine can irritate the internal lining from the arteries. Smoking https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/