{"paper_id":"97f5b1b2-6bf5-4849-bc03-a6d0d18e823d","body_text":"Abstract\nPurpose\nTo compare the performance of imaging interpretation, intra- and inter-reader agreement between an abbreviated (aMRI) and full (fMRI) MRI protocol for diagnosis of pelvic endometriosis.\nMethods\nSeventy consecutive fMRI exams performed under suspicion of pelvic endometriosis were selected. Four radiologists (Rd) (1–10 years experience) independently evaluated presence/absence of endometriosis at 9 anatomic sites (AS). The readers evaluated aMRI (coronal T2 TSE volumetric images and axial T1 GRE fat-sat without contrast, extracted from fMRI) and fMRI protocols randomly, with at least 4 weeks interval between readings. The degree of confidence for diagnosis at each AS was evaluated with a 1–3 Likert Scale (1: low; 3: high). Intra- and inter-reader agreement between protocols were evaluated by kappa statistics and took reading experience into account. The gold standard for assessing the performance of imaging interpretation (sensitivity, specificity and accuracy) used a consensus reading of two other Rd (> 15 years experience).\nResults\nThere was no significant difference in the accuracy of imaging interpretation between the abbreviated (0.83–0.86) and full (0.83–0.87) protocols (p = 0.15). Intra-reader agreement between protocols ranged from substantial to almost perfect (0.74–0.96). A substantial inter-reader agreement was found for both protocols for readers with similar levels of experience (0.67–0.69) and in the global analysis (0.66 for both protocols). No difference was found in terms of degree of confidence between protocols, for all readers.\nConclusion\nAn abbreviated MRI protocol for pelvic endometriosis provided an accuracy of interpretation comparable to that of a complete protocol, with similar degrees of confidence and reproducibility, regardless the level of experience.\nSimilar content being viewed by others\nReferences\nJha P, Chamié LP (2020) Endometriosis MRI lexicon: consensus statement from the society of abdominal radiology endometriosis disease focused panel. Abdominal Radiology 45:1552–1568.\nFoti PV, Farina R, Palmucci S, Vizzini IA (2018) Endometriosis: clinical features, MR imaging findings and pathologic correlation. Insights into Imaging 9:149–172.\nChamié LP, Blasbalg R, Pereira RMA (2011) Findings of Pelvic Endometriosis at Transvaginal US, MR Imaging, and Laparoscopy. 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Abdom Radiol 45:1847–1865.\nFunding\nThis research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEthics declarations\nConflict of interest\nThere are no conflicts of interest to declare.\nAdditional information\nPublisher's Note\nSpringer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.\nRights and permissions\nAbout this article\nCite this article\nda Silva, L.L.C., Torres, U.S., Torres, L.R. et al. Performance of imaging interpretation, intra- and inter-reader agreement for diagnosis of pelvic endometriosis: comparison between an abbreviated and full MRI protocol. Abdom Radiol 46, 4025–4035 (2021). https://doi.org/10.1007/s00261-021-03052-5\nReceived:\nRevised:\nAccepted:\nPublished:\nVersion of record:\nIssue date:\nDOI: https://doi.org/10.1007/s00261-021-03052-5","source_license":"CC0","license_restricted":false}