Image Wisely is a joint initiative of the American College of Radiology, Radiological Society of North America, American Society of Radiological Technologists and American Association of Physicists in Medicine.

Case 1: CT Dose and Size-Specific Dose Estimate (SSDE)

Explains common CT dose terms along with their proper usage and limitations.

Authors: M. Supanich, M; D. Peck

Audience: Radiologists, radiologic technologists and medical physicists working with computed tomography

This educational activity is free.

Objectives
Upon completion of this case, the participant will be able to:

  1. Understand how CTDI and DLP are used
  2. Understand the limitations in these values with different size patients
  3. Understand the method used to determine the Size Specific Dose Estimate (SSDE)
  4. Understand the limitations in the use of SSDE

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CE Credit Information
Image Wisely Radiation Safety Cases have been approved by the Commission on Accreditation of Medical Physics Education Programs, Inc. (CAMPEP) for MPCEC, Accreditation Council for Continuing Medical Education (ACCME) for Cat. 1 CME, and by American Registry of Radiologic Technologists (ARRT) for Cat. A CE. Case 10 (Child-sizing CT Dose) is 1.0 credit hours; all other cases are 0.5 credit hours. All Image Wisely Radiation Safety Cases are designated SA-CME by the American Board of Radiology (ABR) and qualify toward fulfilling requirements for Maintenance of Certification (MOC) Part II: Lifelong Learning and Self-assessment for physicians and medical physicists.

There is no charge to participate in this educational activity. For CE credit tracking and reporting, you will be redirected to the ACR website to log in or register and add the free module to your shopping cart for $0. Step-by-step instructions on accessing the case are available here.

Image Wisely encourages practitioners to optimize the amount of radiation used in
medically necessary imaging studies and to eliminate unnecessary procedures

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