What is computed tomography angiography? CT angiography is a type of medical test that combines a CT scan with an injection of a special dye to produce pictures of blood vessels and tissues in a part of your body.

What is the difference between a CT scan and a CTA?

CT and CTA – What's the Difference? Computed tomography (CT) scans take cross-sectional images of soft tissues or skeletal anatomy. Computed tomography angiography (CTA) takes the CT scan a step further by creating cross-sectional images of soft tissues, skeletal anatomy, and vascular structures.

What does a CTA scan show?

Computed tomography angiography (CTA) uses an injection of contrast material into your blood vessels and CT scanning to help diagnose and evaluate blood vessel disease or related conditions, such as aneurysms or blockages. CTA is typically performed in a radiology department or an outpatient imaging center.