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What Happens During an Angiography?

For this study, a catheter is used to inject a dye into the major blood vessel(s) of an organ. The amount of dye used depends on the size and function of organ’s blood vessels. While the dye is injected, many X-ray images are quickly taken. The goal is to clearly see how blood flows through the kidney or other organ.

You should tell your doctor if you are pregnant, use blood thinners (like aspirin), or have known kidney problems.

Possible complications may include reaction to the dye, bleeding and injury to the artery.