A technician called a sonographer conducts a carotid ultrasound with a little, handheld system referred to as a transducer. The transducer emits audio waves and information the echo given that the waves bounce off tissues, organs and blood cells.   You will find there's problem with info submitted for this https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/