How can the radiation dose of coronary computed tomography angiography (CCTA) be lowered?

Updated: Dec 21, 2017
  • Author: Eugene C Lin, MD; Chief Editor: Eugene C Lin, MD  more...
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Answer

Answer

In one study, 320-slice CT, prospective gating, iterative reconstruction and automated exposure control were used in conjunction with lower radiation dose in 107 consecutive patients. [59] The dosage was less than 4 mSv for 96% of the patients and less than 1 mSv for 54% of the patients. For comparison, the average yearly background radiation dose is around 3 mSv.


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