When a medical imaging exam provides a clinical benefit, the only risk that should be considered is the exam itself rather than a patient's previous radiation exposure, according to a statement by ...

A recent study published in the BMJ evaluated the effects of long-term exposure to low-dose ionizing radiation on cancer mortality. Study: Cancer mortality after low dose exposure to ionising ...

Higher radiation doses (70 Gy) in lung cancer treatment did not increase pneumonitis risk and improved survival rates. Patients receiving 70 Gy had lower pneumonitis rates (34.5%) compared to ...

Get an x-ray, and you get a small dose of radiation to visualize your bones and body structures to help you medically. Buy a smoke detector, you’re inviting a tiny source of radiation, americium-241, ...

WASHINGTON — To protect astronauts from cancer-causing radiation in space, NASA should proceed with proposals to set a universal career-long radiation dose limit of ~600 millisieverts (mSv), says a ...

Japan's nuclear regulator is to increase the radiation exposure limit for workers in emergency situations from the current 100 millisieverts (mSv) to 250 mSv. The limit was temporarily raised ...