In this analysis, Columbia University researchers estimated risks for cancer that might be caused by radiation from CT scanning. They used data on long-term cancer incidence among Hiroshima ...

The radiation (X-rays) from the CT scanner only radiates the patient and only during the CT scan. Whenever a repeat PET/CT scan is necessary, it should be performed with low dose CT.

Using CT scans, doctors can more easily diagnose problems such as cancers, cardiovascular disease, infectious disease, trauma and musculoskeletal disorders. » What are the typical radiation doses ...