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Editorial| Volume 91, P132-133, November 01, 2022

Use “attenuation” not “density” in the context of CT

Published:September 02, 2022DOI:https://doi.org/10.1016/j.clinimag.2022.08.020
Use “attenuation” not “density” in the context of CT
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      It's time to retire the use of the term “density” when describing the appearance of materials at CT imaging. “Attenuation” is the correct term. CT is not merely a densitometer. Recall that the formula for Hounsfield units is
      • Bushberg J.T.
      The Essential Physics of Medical Imaging.
      Lippincott Williams & Wilkins, Philadelphia2011
      :
      HU = μ material − μ water / μ water × 1000


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      Article Info

      Publication History

      Published online: September 02, 2022
      Accepted: August 17, 2022
      Received in revised form: August 5, 2022
      Received: May 11, 2022

      Footnotes

      ☆Disclosures: Jeffrey R. Sachs discloses he is a paid medical consultant for GE Healthcare.

      Identification

      DOI: https://doi.org/10.1016/j.clinimag.2022.08.020

      Copyright

      © 2022 Elsevier Inc. All rights reserved.

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