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O-RADS
Priyanka Jha, MBBS
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KEY FACTS

  • Terminology

    • Imaging

      • Clinical Issues

        • Diagnostic Checklist

          TERMINOLOGY

          • Abbreviations

            • Ovarian-Adnexal Reporting and Data System (O-RADS)
          • Definitions

            • Standardized lexicon and risk stratification tool for characterization of adnexal lesions essential for optimal patient management
            • 2 arms: Ultrasound (US) and magnetic resonance (MR) imaging arms
            • Most ovarian/adnexal lesions initially evaluated with US: O-RADS US is primary assessment tool
            • O-RADS MR has ↑ specificity → characterization of lesions indeterminate on US

          IMAGING

          • Ultrasonographic Findings

            • Imaging Recommendations

              CLINICAL ISSUES

              • Presentation

                • Demographics

                  • Natural History & Prognosis

                    • Treatment

                      DIAGNOSTIC CHECKLIST

                      • Consider

                        • Image Interpretation Pearls

                          • Reporting Tips

                            Selected References

                            1. ACR: O-RADS Risk Stratification - governing concepts. Published April 2020. Accessed April 27, 2021. https://www.acr.org/-/media/ACR/Files/RADS/O-RADS/O-RADS_US-Risk-Stratification-Table.pdf
                            2. ACR: Ovarian-Adnexal Reporting & Data System (O-RADS). Accessed April 27, 2021. https://www.acr.org/Clinical-Resources/Reporting-and-Data-Systems/O-Rads
                            3. Basha MAA et al: Comparison of O-RADS, GI-RADS, and IOTA simple rules regarding malignancy rate, validity, and reliability for diagnosis of adnexal masses. Eur Radiol. 31(2):674-84, 2021
                            4. Bourdel N et al: Borderline ovarian tumors: Guidelines from the French national college of obstetricians and gynecologists (CNGOF). Eur J Obstet Gynecol Reprod Biol. 256:492-501, 2021
                            5. Huchon C et al: Borderline ovarian tumors: French guidelines from the CNGOF. Part 1. Epidemiology, biopathology, imaging and biomarkers. J Gynecol Obstet Hum Reprod. 50(1):101965, 2021
                            6. Strachowski LM et al: O-RADS Ultrasound: a user's guide, from the AJR Special Series on Radiology Reporting and Data Systems. AJR Am J Roentgenol. 216(5):1150-65, 2021
                            7. Andreotti RF et al: O-RADS US Risk Stratification and Management System: a consensus guideline from the ACR Ovarian-Adnexal Reporting and Data System Committee. Radiology. 294(1):168-85, 2020
                            8. Stein EB et al: Contemporary guidelines for adnexal mass imaging: a 2020 update. Abdom Radiol (NY). ePub, 2020
                            9. Suh-Burgmann E et al: Reservations regarding O-RADS recommendations. Radiology. 295(1):248-9, 2020
                            10. Thomassin-Naggara I et al: Ovarian-Adnexal Reporting Data System magnetic resonance imaging (O-RADS MRI) score for risk stratification of sonographically indeterminate adnexal masses. JAMA Netw Open. 3(1):e1919896, 2020
                            11. Wilson MP et al: Solid Hypoechoic Adnexal Lesions with Acoustic Shadowing Warrant an MRI Recommendation in the O-RADS Risk Stratification and Management System. Radiology. 296(1):E11-13, 2020
                            Related Anatomy
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                            References
                            Tables

                            Tables

                            KEY FACTS

                            • Terminology

                              • Imaging

                                • Clinical Issues

                                  • Diagnostic Checklist

                                    TERMINOLOGY

                                    • Abbreviations

                                      • Ovarian-Adnexal Reporting and Data System (O-RADS)
                                    • Definitions

                                      • Standardized lexicon and risk stratification tool for characterization of adnexal lesions essential for optimal patient management
                                      • 2 arms: Ultrasound (US) and magnetic resonance (MR) imaging arms
                                      • Most ovarian/adnexal lesions initially evaluated with US: O-RADS US is primary assessment tool
                                      • O-RADS MR has ↑ specificity → characterization of lesions indeterminate on US

                                    IMAGING

                                    • Ultrasonographic Findings

                                      • Imaging Recommendations

                                        CLINICAL ISSUES

                                        • Presentation

                                          • Demographics

                                            • Natural History & Prognosis

                                              • Treatment

                                                DIAGNOSTIC CHECKLIST

                                                • Consider

                                                  • Image Interpretation Pearls

                                                    • Reporting Tips

                                                      Selected References

                                                      1. ACR: O-RADS Risk Stratification - governing concepts. Published April 2020. Accessed April 27, 2021. https://www.acr.org/-/media/ACR/Files/RADS/O-RADS/O-RADS_US-Risk-Stratification-Table.pdf
                                                      2. ACR: Ovarian-Adnexal Reporting & Data System (O-RADS). Accessed April 27, 2021. https://www.acr.org/Clinical-Resources/Reporting-and-Data-Systems/O-Rads
                                                      3. Basha MAA et al: Comparison of O-RADS, GI-RADS, and IOTA simple rules regarding malignancy rate, validity, and reliability for diagnosis of adnexal masses. Eur Radiol. 31(2):674-84, 2021
                                                      4. Bourdel N et al: Borderline ovarian tumors: Guidelines from the French national college of obstetricians and gynecologists (CNGOF). Eur J Obstet Gynecol Reprod Biol. 256:492-501, 2021
                                                      5. Huchon C et al: Borderline ovarian tumors: French guidelines from the CNGOF. Part 1. Epidemiology, biopathology, imaging and biomarkers. J Gynecol Obstet Hum Reprod. 50(1):101965, 2021
                                                      6. Strachowski LM et al: O-RADS Ultrasound: a user's guide, from the AJR Special Series on Radiology Reporting and Data Systems. AJR Am J Roentgenol. 216(5):1150-65, 2021
                                                      7. Andreotti RF et al: O-RADS US Risk Stratification and Management System: a consensus guideline from the ACR Ovarian-Adnexal Reporting and Data System Committee. Radiology. 294(1):168-85, 2020
                                                      8. Stein EB et al: Contemporary guidelines for adnexal mass imaging: a 2020 update. Abdom Radiol (NY). ePub, 2020
                                                      9. Suh-Burgmann E et al: Reservations regarding O-RADS recommendations. Radiology. 295(1):248-9, 2020
                                                      10. Thomassin-Naggara I et al: Ovarian-Adnexal Reporting Data System magnetic resonance imaging (O-RADS MRI) score for risk stratification of sonographically indeterminate adnexal masses. JAMA Netw Open. 3(1):e1919896, 2020
                                                      11. Wilson MP et al: Solid Hypoechoic Adnexal Lesions with Acoustic Shadowing Warrant an MRI Recommendation in the O-RADS Risk Stratification and Management System. Radiology. 296(1):E11-13, 2020