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Thomassin-Naggara I, Poncelet E, Jalaguier-Coudray A, Guerra A, Fournier LS, Stojanovic S, Millet I, Bharwani N, Juhan V, Cunha TM, Masselli G, Balleyguier C, Malhaire C, Perrot NF, Sadowski EA, Bazot M, Taourel P, Porcher R, Darai E, Reinhold C, Rockall AG. Ovarian-Adnexal Reporting Data System Magnetic Resonance Imaging (O-RADS MRI) Score for Risk Stratification of Sonographically Indeterminate Adnexal Masses. JAMA Netw Open 2020; 3:e1919896. [PMID: 31977064 PMCID: PMC6991280 DOI: 10.1001/jamanetworkopen.2019.19896] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
IMPORTANCE Approximately one-quarter of adnexal masses detected at ultrasonography are indeterminate for benignity or malignancy, posing a substantial clinical dilemma. OBJECTIVE To validate the accuracy of a 5-point Ovarian-Adnexal Reporting Data System Magnetic Resonance Imaging (O-RADS MRI) score for risk stratification of adnexal masses. DESIGN, SETTING, AND PARTICIPANTS This multicenter cohort study was conducted between March 1, 2013, and March 31, 2016. Among patients undergoing expectant management, 2-year follow-up data were completed by March 31, 2018. A routine pelvic MRI was performed among consecutive patients referred to characterize a sonographically indeterminate adnexal mass according to routine diagnostic practice at 15 referral centers. The MRI score was prospectively applied by 2 onsite readers and by 1 reader masked to clinical and ultrasonographic data. Data analysis was conducted between April and November 2018. MAIN OUTCOMES AND MEASURES The primary end point was the joint analysis of true-negative and false-negative rates according to the MRI score compared with the reference standard (ie, histology or 2-year follow-up). RESULTS A total of 1340 women (mean [range] age, 49 [18-96] years) were enrolled. Of 1194 evaluable women, 1130 (94.6%) had a pelvic mass on MRI with a reference standard (surgery, 768 [67.9%]; 2-year follow-up, 362 [32.1%]). A total of 203 patients (18.0%) had at least 1 malignant adnexal or nonadnexal pelvic mass. No invasive cancer was assigned a score of 2. Positive likelihood ratios were 0.01 for score 2, 0.27 for score 3, 4.42 for score 4, and 38.81 for score 5. Area under the receiver operating characteristic curve was 0.961 (95% CI, 0.948-0.971) among experienced readers, with a sensitivity of 0.93 (95% CI, 0.89-0.96; 189 of 203 patients) and a specificity of 0.91 (95% CI, 0.89-0.93; 848 of 927 patients). There was good interrater agreement among both experienced and junior readers (κ = 0.784; 95% CI, 0.743-0824). Of 580 of 1130 women (51.3%) with a mass on MRI and no specific gynecological symptoms, 362 (62.4%) underwent surgery. Of them, 244 (67.4%) had benign lesions and a score of 3 or less. The MRI score correctly reclassified the mass origin as nonadnexal with a sensitivity of 0.99 (95% CI, 0.98-0.99; 1360 of 1372 patients) and a specificity of 0.78 (95% CI, 0.71-0.85; 102 of 130 patients). CONCLUSIONS AND RELEVANCE In this study, the O-RADS MRI score was accurate when stratifying the risk of malignancy in adnexal masses.
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Affiliation(s)
- Isabelle Thomassin-Naggara
- Service de Radiologie, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris, Sorbonne Université, Paris, France
- Institute for Computing and Data Sciences, Sorbonne Université, Paris, France
- American College of Radiology, Ovarian-Adnexal Reporting and Data System Magnetic Resonance Imaging Committee
| | - Edouard Poncelet
- Service d’Imagerie de la Femme, Centre Hospitalier de Valenciennes, Valenciennes, France
| | | | | | - Laure S. Fournier
- Department of Radiology, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Université Paris-Descartes, Paris, France
| | - Sanja Stojanovic
- Centre for Radiology, Clinical Centre of Vojvodina, Medical Faculty, University of Novi Sad, Novi Sad, Serbia and Montenegro
| | - Ingrid Millet
- Lapeyronie Hospital, University of Montpellier, Montpellier, France
| | - Nishat Bharwani
- Department of Radiology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | | | - Teresa M. Cunha
- Department of Radiology, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal
| | - Gabriele Masselli
- Department of Radiology, Umberto I Hospital, Sapienza University Roma, Rome, Italy
| | | | | | | | - Elizabeth A. Sadowski
- American College of Radiology, Ovarian-Adnexal Reporting and Data System Magnetic Resonance Imaging Committee
- University of Wisconsin, Madison, Wisconsin
| | - Marc Bazot
- Service de Radiologie, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris, Sorbonne Université, Paris, France
- Institute for Computing and Data Sciences, Sorbonne Université, Paris, France
| | - Patrice Taourel
- Lapeyronie Hospital, University of Montpellier, Montpellier, France
| | - Raphaël Porcher
- Centre of Research in Epidemiology and Statistics Sorbonne Paris Cité, Institute national de la santé et de la recherche médicale, Joint Research Unit 1153, Paris, France
| | - Emile Darai
- Service de Gynecologie et Obstetrique et Médecine de la Reproduction, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris, Hôpitaux Univesitaires Est Parisien, Paris, France
- Faculté de Médecine Pierre et Marie Curie, Sorbonne Université, Paris, France
| | - Caroline Reinhold
- American College of Radiology, Ovarian-Adnexal Reporting and Data System Magnetic Resonance Imaging Committee
- Department of Medical Imaging, McGill University Health Centre, Montreal, Quebec, Canada
| | - Andrea G. Rockall
- American College of Radiology, Ovarian-Adnexal Reporting and Data System Magnetic Resonance Imaging Committee
- Department of Radiology, Imperial College Healthcare NHS Trust, London, United Kingdom
- Division of Cancer and Surgery, Faculty of Medicine, Imperial College London, United Kingdom
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