Keywords: Cat scan (1).jpg A head x-ray taken by a computer-assisted tomographic CAT scanner This diagnostic technique uses computers to organize thousands of x-rays taken by a rotating machine around the patient When first applied in the 1970's it revolutionized detection of brain tumors Topics/Categories Test or Procedure -- Imaging Procedures Type B W Photo Source National Cancer Institute Linda Bartlett Photographer 1980 1980 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Linda Bartlett Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ |