Computed Tomography

The 2009 National Council on Radiation Protection and Measurements, Report No. 160 — Ionizing Radiation Exposure of the Population of the United States — showed that medical exposure to patients is one of the largest sources of radiation exposure to Americans, nearly equaling the exposure from background sources. Computed tomography is the largest source of medical radiation exposure.

The benefits of computed tomography are immense and certainly exceed the risks. However, this is only true when they are ordered appropriately and studies are optimized to obtain the best image quality with the lowest radiation dose. And be sure to take the pledge to image wisely!

  • Imaging Physicians 

    » Imaging Physicians

    Radiologists make daily decisions about how to balance effective studies and treatment with safe radiation dose. The information provided here focuses on the aspects of imaging of greatest relevance to imaging physicians and which influence dose, either directly or indirectly.

  • Medical Physicists

    » Medical Physicists

    Medical physicists contribute valuable knowledge and experience to the maintenance of quality in CT images and to reducing radiation dose to patients from CT examinations. Medical physicists help design and select optimum imaging protocols to acquire necessary information at the lowest possible radiation dose.

  • Radiologic Technologists

    » Imaging Technologists

    Imaging technologists carry out the vital role of dispensing the ionizing radiation necessary for producing image data. The resources presented here cover the physics and principles of operating modern CT devices, best practices for CT exam protocols, and peer-to-peer discussion boards.