CT Scan - Angio Lower Limb Test

Computed Tomography Angiography involves injection of an iodine-rich contrast material and CT scanning to diagnose problems in the blood vessels like aneurysms (weakening of the artery wall causing a bulge) and blockages in the lower extremities or lower limbs. It is performed when there is a suspicion of insufficient blood flow to the legs which can be recognized through pain while walking. It is also performed when symptoms like cramps and excessive fatigue in legs and hips on climbing stairs or walking are observed. A CT scan uses a large number of X-ray beams and electronic X-ray detectors to detect the blood vessels. When the contrast is injected into the patient’s body using a catheter, the blood vessels appear as bright white in the images. The test is used by physicians to diagnose blockages, aneurysms, disorganized blood vessels, and injuries in blood vessels.

Wear comfortable and loose-fitting clothes for the scan. All metal objects including piercings, eyeglasses, dental fillings, hearing aids and pins must be left outside. You cannot consume food a few hours prior to the scan. You must inform your doctor about any allergies before administration of the contrast. All medical conditions must be informed in prior to avoid adverse effect. Also, inform if you are pregnant or breastfeeding. The process is painless and fast.