Blocked Carotid Artery (IMAGE) Society of Interventional Radiology Caption This image shows a blocked carotid artery. Credit Copyright (c) 2007, Society of Interventional Radiology Usage Restrictions Please credit the Society of Interventional Radiology. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.