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How much radiation is used in the screening CT scan?

CT screening uses a lower dose compared to standard CT scans. We strive to keep the dose between 1-2 mSv (millisieverts) or lower, although for individual patients it may be slightly higher than this value. As a comparison, average background radiation in the US is approximately 3 mSv/ year and in Denver, Colorado, due to the higher altitude it is 11.8.  Another comparison is that the exposure of a low-dose CT scan is less than a mammogram which is below 0.6 mSv.

Studies: 
I-ELCAP
Legacy
FAMRI
Weight: 
-6