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CT Angiography

What Is CT Angiography?

CT Angiography is performed in Toshiba 640-slice 4D CT Scanner Suite as a non-invasive procedure to determine whether either fatty or calcium deposits have built up in your coronary arteries. It is also used to exclude narrowing of the arteries as the cause of chest discomfort and detect other possible causes of symptoms.


It can provide important insights to doctors into the extent and nature of plaque formation with or without any narrowing of your coronary arteries.


After the CT Angiography is completed, you can return to your normal daily activities immediately.


Should I Perform CT Angiography?

We suggest the careful use of CT Coronary Angiography for patients who have:

  1. Intermediate to high-risk profiles for coronary artery disease, but who do not have typical symptoms (especially chest pain, shortness of breath, or fatigue during heavy physical activity)
  2. Unusual symptoms for coronary artery disease (such as chest pain unrelated to physical exertion), but low to intermediate risk profiles for coronary artery disease.
  3. Unclear or inconclusive threadmil stress test

Why CT Angiography?

MSCT Coronary Angiography Catheter Coronary Angiography
Non-invasive procedure – injection of contrast dye via a needle in a peripheral vein Invasive procedure – a catheter is inserted all the way into the Coronary Arteries from a peripheral artery
Safer (no risk of local damage or stroke) Risk of local arterial perforation or Stroke
Outpatient visit (1-2 hours) Requires day case admission (3-8 hours)
Lower Cost Higher Cost
Unique ability to visualize soft plaque and calcium deposit Cannot visualize soft plaque which is most likely to rupture and cause a heart attack
Lower dose of radiation (reduced by 50%) Higher dose of radiation
Normal activities can be resumed right after screening Normal activities can only be resumed after 48 hours
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