A recent study estimated that up to 5% of all cancers may have been caused by CT scans, raising questions about when and how the technology should be used. The greatest risk is to infants, since they ...

CT scans of the head, for example, expose patients to about the equivalence of one year of natural radiation. This is about 100 times the radiation dose from a chest X ray. Other CT examinations ...

PET Scan vs. CT Scan. CT scans use X-rays to take images of the inside of your body, including your bones, blood vessels, ... and brain conditions. The scan is generally safe, ...

In 1979, Hounsfield won the Nobel Prize in Physiology or Medicine for his role in the development of computer-assisted ...

CT scans are quick, painless, non-invasive tests that can identify everything from brain tumors to injuries from an accident. But a new study published in the journal JAMA Internal Medicine shows ...

CT scans are one of the most effective medical tools available today, providing an in-depth look inside the human body to spot tumors, detect brain bleeds and other ailments.

A CAT scan showed it was a brain tumor. “They went in and took out 98% of it,” Scelza said, and Ryder then was doing better, able to walk and talk at that point.

Medical imaging scans that create detailed images of the body’s internal structures are widely used in medicine. Doctors need them to detect and manage certain types of cancer, assess the extent of ...