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
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
ACR: Ovarian-Adnexal Reporting & Data System (O-RADS). Accessed April 27, 2021. https://www.acr.org/Clinical-Resources/Reporting-and-Data-Systems/O-Rads
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
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
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
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
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
Stein EB et al: Contemporary guidelines for adnexal mass imaging: a 2020 update. Abdom Radiol (NY). ePub, 2020
Suh-Burgmann E et al: Reservations regarding O-RADS recommendations. Radiology. 295(1):248-9, 2020
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
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
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
ACR: Ovarian-Adnexal Reporting & Data System (O-RADS). Accessed April 27, 2021. https://www.acr.org/Clinical-Resources/Reporting-and-Data-Systems/O-Rads
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
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
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
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
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
Stein EB et al: Contemporary guidelines for adnexal mass imaging: a 2020 update. Abdom Radiol (NY). ePub, 2020
Suh-Burgmann E et al: Reservations regarding O-RADS recommendations. Radiology. 295(1):248-9, 2020
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
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
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