A technician named a sonographer conducts a carotid ultrasound with a little, handheld gadget called a transducer. The transducer emits audio waves and records the echo given that the waves bounce off tissues, organs and blood cells. New narrowing from the carotid artery (restenosis). An important disadvantage of carotid angioplasty https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/