What are the indications for the use of carbon dioxide and gadolinium? What are the limitations to the use of carbon dioxide? What is the risk of giving gadolinium in patients with renal insufficiency? What two contrast agents other than iodine can be used in angiographic imaging? Book traversal links for Contrast agents ‹ What type of vascular contrast is used for CTA? Up What are the indications for the use of carbon dioxide and gadolinium? ›