Ultrafast Computed Tomography Scan

Overview

Reasons for the Procedure

An ultrafast CT scan may be scheduled for, but not limited to, the following reasons:

• to assess the condition of the coronary arteries
  
  
• to assess suspected mass or tumor within the heart
  
  
• to assess suspected aortic aneurysm (a weakened area of the aorta, the main artery that carries oxygenated blood to rest of the body)
  
  
• to assess heart tissue damage after a heart attack (also called myocardial infarction, or MI)
  
  
• to assess the patency (openness) of coronary artery bypass grafts
  
  
• to assess the pericardium (the outer sac surrounding the heart)
  
  
• to assess suspected congenital (present at birth conditions of the aortic arch (the arch-like portion of the aorta)
  
  
• to assess suspected aortic dissection (tearing of the lining of the aorta)

Ultrafast CT is currently used primarily for the diagnosis of coronary artery disease, particularly in people who have no symptoms of the disease but who have significant risk factors for the disease.

Risks of the Procedure

There is a minimal risk from radiation exposure and a small risk of reaction to the contrast medication, if used. People with a known allergy to iodine and/or seafood or a previous reaction to x-ray dye will be given a different type of contrast, if required. Women who are pregnant or suspect they may be pregnant should not have an ultrafast CT scan.

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