Image Gently, Image Wisely: Nationwide campaign to optimize the use of medical radiation exposure

Guest:  Dr. Feldmann—Memorial’s Valley Imaging

Date: September 24, 2013


  • Image Gently:  “To ensure that every imaging study is thoughtful, appropriate and indicated for each and every child.” The “Image Gently” campaign developed and widely embraced a few years ago successfully lowered dose but at the expense image quality
  • Image Wisely:  Charter members of Image Wisely are American College of Radiology (ACR), Radiological Society of North America (RSNA), American Society of Radiologic Technologists (ASRT), and American Associates of Physicists in Medicine (AAPM)
  • Approximately 60 million CT scans are performed in the US per year. It is a test that allows physicians to make timely & accurate diagnoses that save lives.
  • We are all exposed to natural background radiation primarily from cosmic radiation & radon gas of 3 – 5 mSv/year.
  • A round trip flight from Seattle to NY is equivalent to one chest x-ray. One CT scan is equivalent to 1 to 3 years of natural background radiation.
  • CT scans account for half of all medical radiation exposure – although the radiation exposure risks are very low, physicians, hospitals, & engineers are continually striving to lower radiation dose and risk
  • SafeCT is FDA certified & approved. It cuts radiation dose in half and preserves image quality.
  • Safe CT was developed by a group of math PhD’s in Israel, it employs complex mathematical iterative algorithms that suppress noise. The noise is analogous to radio background static.
  • Memorial implemented SafeCT in August for all CT scanners. This technology is embraced & utilized at the Mayo Clinic, Mass General Hospital, and many other institutions.

SafeCT Patient Benefits:

  • Reduction of radiation dose by 40%-60%
  • Does not increase costs to patients
  • Any process that reduces radiation dose will increase patient safety
  • Steep reduction in radiation dose while maintaining excellent image quality
  • Provided by Memorial Hospital to improve the quality of CT imaging while adhering to the goals of the nationwide Image Gently and Image Wisely campaigns to lower radiation dose to the patient


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