Radiation from the images causes 5 percent of cancer cases, according to a new study. The doctor who made this grim discovery ...

However, keep in mind that the U.S. Food and Drug Administration (FDA) estimates that any one person’s risk of cancer from a CT scan is much lower than their risk of getting cancer naturally.

The most common cancers linked to CT exposure are lung, colon, bladder and leukemia ... for example, deliver lower doses of radiation, and MRI scans don't use radiation at all.

The findings suggest that if current scanning rates continue, CT scans could be responsible for around 5% of all new cancer ...