- To look for High Blood pressure in young patients.
- For a CT with contrast, do not eat anything for 6 hours before the scan.
- A CT angiography is a type of medical test that combines a CT scan with the injection of a special dye to produce pictures of blood vessels and tissues in a part of your body. The dye is injected through an intravenous (IV) line started in your arm or hand.
- The scan shows narrowings/other diseases in the blood vessels supplying to the kidneys.