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CT Angio – Lower Limb

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Overview

CT angio of the lower limb is a type of Computerised Tomography angiogram technique that uses a contrast dye material.

What is CT Angio of Lower Limb?

The CT Angio of Lower Limb test is useful to detect abnormalities in the lower limbs.

  • Helps detect aneurysms in the lower limbs.
  • A CT Angio of Lower Limb is performed on suspecting insufficient blood supply to the legs.
  • Fatigue in legs, tiredness in legs and hips on walking are common symptoms to perform this test.
  • Helps detect peripheral artery disease, blood clots, blockages in the blood vessels, and gangrene. [1]

A CT Angio of Lower Limb test is very useful to prevent amputation of the lower limbs.

How is a CT Angio of Lower Limb performed?

A CT Angio of Lower Limb is performed similarly to other CT angiograms in the body.

  • After the initial preparation, a contrast dye is injected into a vein in your arm using an IV catheter.
  • You will be asked to lie on a narrow table that is centered with the CT scanner.[2]
  • The machine’s x-ray beams rotate around you to take images in different angles.
  • You may be asked to hold your breath for a few seconds to prevent movement of images.

The CT Angio of Lower Limb takes about 5 minutes to perform after the initial preparation is done.[2]

Side effects/risks of CT Angio of Lower Limb

The side-effects of a CT Angio of Lower Limb include:

  • Allergy to the contrast dye.
  • Pain on burning sensation during the injection of the dye.

Preparation before performing a CT Angio of Lower Limb

For a CT Angio of Lower Limb: [1]

  • Wear loose clothes.
  • Remove all metal objects, including jewelry.
  • Fast for a few hours before the scan.
  • Anesthesia or sedation may be needed in some cases.

Post-care after CT Angio of Lower Limb

Once the CT Angio of Lower Limb is done:

  • The patient will be asked to drink lots of fluids to eliminate the dye.
  • The patient will be asked to eat something to break the fast.

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