The root term [-angi-] has Greek origins and means "vessel", as in a "container". The suffix [(o)gram] means "examination of", or a "record". An angiogram is the examination of a vessels using some type of viewing or recording device.

In an angiogram the physician will inject radiopaque contrast to make the vessels discernible in an X-ray machine.

The accompanying image is an angiogram of the right coronary artery. It can also be called a "coronariogram".