A technician referred to as a sonographer conducts a carotid ultrasound with a small, handheld device identified as a transducer. The transducer emits sound waves and information the echo given that the waves bounce off tissues, organs and blood cells.   There's a issue with details submitted for this ask https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/