What is CT Aortography?
CT Aortography (also called CT Aortogram) is a specialized CT scan that provides detailed images of the aorta, the main artery that carries blood from the heart to the rest of the body. The test uses contrast dye and advanced X-ray technology to visualize the structure, size, and flow within the aorta and its major branches.
Doctors recommend this scan to diagnose or rule out serious vascular conditions like aortic aneurysms, dissections, or blockages that can lead to life-threatening complications.
Why is CT Aortography Done?
This test helps in evaluating:
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Aortic aneurysm (bulging or widening of the aorta)
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Aortic dissection (tear in the vessel wall)
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Congenital vascular abnormalities
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Post-surgical graft assessment
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Traumatic aortic injuries
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Blood flow issues in major arteries
It’s often advised when a patient experiences chest pain, back pain, or shortness of breath that may suggest a vascular cause.
How is the CT Aortography Test Performed?
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You’ll be asked to lie down on a CT table.
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A contrast dye is injected into a vein, usually in the arm, to make the aorta visible on the scan.
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The CT scanner takes rapid images as the contrast moves through your blood vessels.
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The process takes around 10–20 minutes and is painless.
Doctors then review the 3D images to detect any abnormalities in the aortic walls or branches.
Test Preparation and Safety
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Fasting for 4–6 hours may be required.
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Inform your doctor if you have kidney problems, allergies, or are pregnant.
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Mild warm sensation or metallic taste during dye injection is common.
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The procedure is generally safe, with very low radiation exposure.
Benefits of CT Aortography
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High accuracy in diagnosing aortic diseases
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Non-invasive and quick
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Helps plan surgeries or stenting precisely
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Early detection of life-threatening vascular conditions