A small balloon at the end of the catheter is inflated to open the narrowed artery. A steel stent is inserted to avoid the artery from narrowing once more. If carotid endarterectomy just isn't the best choice for you, you might have a process called carotid angioplasty and stenting as https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/