O-RADS MRI: A Guide to the Lexicon, Risk Score and Technique

Learn how to incorporate O-RADS™ MRI in the evaluation of patients with adnexal lesions in clinical practice through the use of lexicon terms, imaging techniques and risk stratification system. 

Viewers will become more familiar with O-RADS MRI and develop an approach to assess lesions in a stepwise algorithmic manner.

By incorporating O-RADS into clinical practice, clinicians can improve risk stratification of adnexal lesions and ensure appropriate patient management and outcomes.

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Learning Objectives


  1. Describe how to accurately characterize both fluid and solid components on MRI using T1-weighted with and without contrast, T2-weighted and diffusion-weighted imaging sequences. 
  2. Identify technical requirements and the risk score categories in the O-RADS MRI risk stratification system. 
  3. Develop an algorithmic approach to analyzing adnexal lesions on MRI based on their imaging appearance.

Instructions for Claiming Continuing Medical Education (CME) Credit

Instructions to Receive Credit

In order to successfully complete the activity, participants must complete an activity evaluation and claim credit commensurate with their participation in the activity.  

Disclosure of Relevant Financial Relationships

The ACR Disclosure Policy:  The American College of Radiology (ACR) adheres to the policies and guidelines, including the Standards for Integrity and Independence in Accredited CE, set forth to providers by the Accreditation Council for Continuing Medical Education (ACCME), stating those activities where continuing education credits are awarded must be balanced, independent, objective, and scientifically rigorous. All persons in a position to control the content of an accredited continuing education program provided by ACR are required to disclose all financial relationships with any ineligible company within the past 24 months.  All financial relationships reported are identified as relevant and mitigated by ACR in accordance with the Standards for Integrity and Independence in Accredited CE in advance of delivery of the activity to learners. The content of this activity was vetted by ACR to assure objectivity and that the activity is free of commercial bias.  All relevant financial relationships have been mitigated by ACR.

The following planners and managers have the following identified relevant financial relationships:

  • Erica Stein – Consulting Fee: AOA DX

The following planners and managers have no relevant financial relationships to disclose:

  • Elizabeth Sadowski, Krupa Patel-Lippman, Lauren Attridge, Cassie Vivian-Davis, Valerie Kasdan, Marielia Gerena, Alexis LaCount, and Maddy Gerhart and 

The following speakers have no relevant financial relationships to disclose:

  • Elizabeth Sadowski and Krupa Patel-Lippman

The following speakers have the following identified relevant financial relationships:

  • Erica Stein – Consulting Fee: AOA DX 

Accreditation and Designation Statements


Credit Designation Statement

The American College of Radiology designates this enduring material activity for a maximum of 1.25 AMA PRA Category 1 Credit™.  Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Physician Accreditation Statement

The American College of Radiology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CME Release: 9/9/2024
CME Expires: 9/9/2027

For information about the accreditation of this program, please contact the ACR at info@acr.org.