Undated (WXOW) - The radiation from repeated CT scans could increase children's risk of leukemia and brain cancer.
The results of a new study find the increased risk is small but significant.
Compared to the general population, children under 15 years of age who had two or three scans of the head had three-times the risk of developing brain cancer; five to 10 scans also tripled the risk of leukemia.
The risk of either is already extremely low, so even tripled, researchers say it's only a small increase.
The new study was published online in a British medical journal.
It stresses that the results should not encourage people to avoid CT scans entirely, but researchers say they should only been conducted when necessary.
At least four million kids in the United States undergo CT scans every year.
Researchers estimate one third of those scans are unnecessary or could be replaced by other imaging methods that do not use radiation.
All content © Copyright 2000 - 2013 WorldNow and WXOW. All Rights Reserved.
Persons with disabilities who need assistance with issues relating to the content of this station's public inspection file should contact Administrative Assistant Theresa Wopat at 507-895-9969. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, at 888-835-5322 (TTY) or at email@example.com.