Also In this particular examination, your provider injects contrast product instantly into your arteries so that they can see the artery details. Then he deploys the stent, which happens to be pushed into area by a balloon. The stent opens the artery and crushes the plaque from the artery wall. https://www.sgvascularctr.com/treating-carotid-artery-disease-an-overview-of-treatment-options-in-singapore/