The 4 million CT scans of the most commonly imaged organs conducted in children each year could result in approximately 4,870 future cancers, the study found. Reducing the highest 25 percent of radiation doses could prevent 2,090—or 43 percent—of these future cancers. By also eliminating unnecessary imaging, 3,020—or 62 percent—of cancers could be prevented, said Diana Miglioretti, lead study author and Dean's Professor in Biostatistics in the Department of Public Health Sciences at UC Davis Health System. "There are potential harms from CT, meaning that there is a cancer risk, albeit very small in individual children, so it's important to reduce this risk in two ways," Miglioretti said....
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