The Use of Alternative Contrast Media. (IMAGE) Elsevier Caption CM = contrast media; CO2 = carbon dioxide; Gd = gadolinium; IVUS = intravascular ultrasound Credit Journal of Vascular and Interventional Radiology Usage Restrictions Please include attribution License Original 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.