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Rizzo S, Cozzi A, Dolciami M, Del Grande F, Scarano AL, Papadia A, Gui B, Gandolfo N, Catalano C, Manganaro L. O-RADS MRI: A Systematic Review and Meta-Analysis of Diagnostic Performance and Category-wise Malignancy Rates. Radiology 2022; 307:e220795. [PMID: 36413127 DOI: 10.1148/radiol.220795] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background US-indeterminate adnexal lesions remain an important indication for gynecologic surgery. MRI can serve as a problem-solving tool through the use of the Ovarian-Adnexal Imaging Reporting and Data System (O-RADS) MRI lexicon, which is based on the ADNEX MR scoring system. Purpose To perform a systematic review and meta-analysis of the diagnostic performance of pelvic MRI interpreted using the ADNEX or O-RADS MRI stratification systems to characterize US-indeterminate adnexal lesions and of the category-wise malignancy rates. Materials and Methods A systematic literature search from May 2013 (publication of the ADNEX MR score) to September 2022 was performed. Studies reporting the use of pelvic MRI interpreted with the ADNEX or O-RADS MRI systems to characterize US-indeterminate adnexal lesions, with pathologic examination and/or follow-up as the reference standard, were included. Summary estimates of diagnostic performance were obtained with the bivariate random-effects model, while category-wise summary malignancy rates of O-RADS MRI 2, 3, 4, and 5 lesions were obtained with a random-effects model. Effects of covariates on heterogeneity and diagnostic performance were investigated through meta-regression. Results Thirteen study parts from 12 studies (3731 women, 4520 adnexal lesions) met the inclusion criteria. Diagnostic performance meta-analysis for 4012 lesions found a 92% summary sensitivity (95% CI: 88, 95) and a 91% summary specificity (95% CI: 89, 93). The meta-analysis of malignancy rates for 3641 lesions showed summary malignancy rates of 0.1% (95% CI: 0, 1) among O-RADS MRI 2 lesions, 6% (95% CI: 3, 9) among O-RADS MRI 3 lesions, 60% (95% CI: 52, 67) among O-RADS MRI 4 lesions, and 96% (95% CI: 92, 99) among O-RADS MRI 5 lesions. Conclusion Pelvic MRI interpreted with the Ovarian-Adnexal Reporting and Data System (O-RADS) MRI lexicon had high diagnostic performance for the characterization of US-indeterminate adnexal lesions. Summary estimates of malignancy rates in the O-RADS MRI 4 and O-RADS MRI 5 categories were higher than predicted ones. © RSNA, 2022 Supplemental material is available for this article. See also the editorial by Lee and Kang in this issue.
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Affiliation(s)
- Stefania Rizzo
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Andrea Cozzi
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Miriam Dolciami
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Filippo Del Grande
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Angela L Scarano
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Andrea Papadia
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Benedetta Gui
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Nicoletta Gandolfo
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Carlo Catalano
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
| | - Lucia Manganaro
- From the Imaging Institute of Southern Switzerland (S.R., F.D.G., A.L.S.) and Department of Gynecology and Obstetrics (A.P.), Ente Ospedaliero Cantonale, Lugano, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (S.R., F.D.G., A.P.); Unit of Radiology, IRCCS Policlinico San Donato, Via Rodolfo Morandi 30, 20097 San Donato Milanese, Italy (A.C.); Department of Radiological, Oncological and Pathological Sciences, Università degli Studi di Roma La Sapienza, Rome, Italy (M.D., C.C., L.M.); Department of Bioimaging, Radiation Oncology, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy (B.G.); and Department of Diagnostic Imaging, Ospedale Villa Scassi ASL 3, Genoa, Italy (N.G.)
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