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Types: CT | CTA | PET/CT

Computed tomography angiography (CTA) is a specialized X-ray that examines blood flow in arteries when they are filled with a contrast material (a substance that makes the blood vessels show on an X-ray). Computed tomography (CT) uses a sophisticated machine to take X-rays from many different views, producing detailed two-dimensional images that can be combined by a computer to form three-dimensional images.

CTA can be used to view blood vessels throughout the body. It is most commonly used to study the:

  • Brain
  • Heart
  • Lungs
  • Kidneys
  • Legs or arms

This procedure is done to help doctors identify diseased, narrowed, enlarged, and blocked blood vessels and locate where internal bleeding may be occurring. Some specific uses include:

  • Detect atherosclerosis (narrowing of the arteries) or an aneurysm (ballooning out of a section of a blood vessel), which could lead to a heart attack or stroke
  • Examine arteries in the lungs to check for an embolism (blockage of a blood vessel by a blood clot or other foreign substance)
  • Evaluate disease in kidney arteries and help get ready for a kidney transplant

Preparing for your CTA scan

  • No solid food 4-6 hours before exam
  • Drink 16 ounces of water one hour prior to exam. Patient may void.
  • Please arrive on time and plan to be at the facility for approximately 1-2 hours.
  • Wear warm comfortable clothing.
  • Please bring your insurance information and written order from your physician






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