CT Angiography (CTA)
CT Angiography (CTA) is an advanced diagnostic imaging procedure used to create detailed images of blood vessels and blood flow throughout the body. Combining computed tomography (CT) technology with a contrast dye, a CT angiogram helps doctors identify narrowing, blockages, aneurysms, blood clots, and other vascular conditions with high precision.
CTA may be recommended to evaluate blood vessels in the heart, brain, neck, chest, abdomen, kidneys, and legs. It is commonly used when symptoms or medical history suggest conditions such as coronary artery disease, stroke risk, peripheral artery disease, or aortic abnormalities.
Why is CT Angiography Performed?
A CT angiography scan can help doctors assess:
- Blocked or narrowed arteries
- Coronary artery disease
- Aneurysms and vascular abnormalities
- Blood clots
- Carotid artery narrowing
- Peripheral vascular disease
- Aortic conditions
- Blood flow abnormalities
What to Expect During the Procedure
During the scan, a contrast dye is administered to make blood vessels clearly visible. The patient lies on a CT scanning table while detailed images are captured. The procedure is generally quick, and patients may receive specific preparation instructions depending on the area being examined.
Benefits of CT Angiography
CTA provides detailed, non-invasive visualization of blood vessels and surrounding structures. It can support timely diagnosis and help healthcare specialists plan appropriate treatment or further evaluation.