What is the accuracy of CT scanning for the evaluation of cardiac calcifications?

Updated: Sep 10, 2019
  • Author: Sohail G Contractor, MD, MBBS; Chief Editor: Eugene C Lin, MD  more...
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CT is highly sensitive for detecting calcification. In a study using calcification on CT as a marker of significant angiographic stenosis, sensitivities of 16-78% were reported. [41] Reported specificities were 78-100%, and positive predictive values were 83-100%, suggesting that CAD may be likely to occur when coronary calcification is observed on CT. Conventional CT demonstrates calcification in 50% more vessels than fluoroscopy does in patients with angiographically proven stenosis. However, conventional CT has a slower scan time and is more prone to artifacts from cardiac and respiratory motion and volume averaging than helical or EBCT. [42, 43, 44, 45, 46, 47]

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