{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T15:04:03Z","timestamp":1777475043203,"version":"3.51.4"},"reference-count":0,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2008,7,1]],"date-time":"2008-07-01T00:00:00Z","timestamp":1214870400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta Radiol"],"published-print":{"date-parts":[[2008,7]]},"abstract":"<jats:p>Background: Accurate evaluation of adnexal masses allows correct surgical procedure, avoiding unnecessary surgery.<\/jats:p>\n                  <jats:p>Purpose: To evaluate the accuracy of magnetic resonance imaging (MRI) in the diagnosis of malignancy of adnexal lesions.<\/jats:p>\n                  <jats:p>Material and Methods: We retrospectively reviewed the pelvic MRI scans of 161 patients with 199 surgically confirmed adnexal masses, between November 1998 and June 2005. The criteria for adnexal malignancy were contrast-enhanced solid lesions, contrast-enhanced solid components in mixed lesions (except those with low-signal-intensity solid components on T2-weighted imaging [T2WI]), contrast-enhanced papillary projections in cystic lesions (except those with low-signal-intensity papillary projections on T2WI), or septal thickness \u22653 mm. Ascites, peritoneal metastasis, and pelvic adenopathy were also regarded as criteria for malignancy.<\/jats:p>\n                  <jats:p>Results: On MRI evaluation, 97 adnexal lesions were malignant and 102 were non-malignant. Thirty-two percent of patients with ascites had benign lesions. Histopathologic evaluation of the adnexal lesions showed that 83 were malignant (true positives), 100 were non-malignant (true negatives), and seven were uncertain malignant potential tumors; two were false negative and seven were false positive. The MRI sensitivity and specificity for malignancy were 98% and 93%, respectively. MRI reached an accuracy of 95%, with a positive predictive value of 0.92 and a negative predictive value of 0.98 for malignant adnexal lesions. The kappa coefficient was 0.906, indicating almost perfect agreement between MRI and histological results.<\/jats:p>\n                  <jats:p>Conclusion: MRI is an accurate method for evaluating the malignancy of adnexal lesions.<\/jats:p>","DOI":"10.1080\/02841850802064995","type":"journal-article","created":{"date-parts":[[2008,5,12]],"date-time":"2008-05-12T13:08:31Z","timestamp":1210597711000},"page":"700-709","source":"Crossref","is-referenced-by-count":21,"title":["Magnetic resonance evaluation of adnexal masses"],"prefix":"10.1177","volume":"49","author":[{"given":"A.","family":"Guerra","sequence":"first","affiliation":[{"name":"Department of Radiology, Hospital Pulido Valente, Lisbon, Portugal; Department of Radiology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal; Department of Pathology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal"}]},{"given":"T. M.","family":"Cunha","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hospital Pulido Valente, Lisbon, Portugal; Department of Radiology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal; Department of Pathology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal"}]},{"given":"A.","family":"F\u00e9lix","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hospital Pulido Valente, Lisbon, Portugal; Department of Radiology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal; Department of Pathology, Instituto Portugu\u00eas de Oncologia de Francisco Gentil, Lisbon, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2008,7,1]]},"container-title":["Acta Radiologica"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1080\/02841850802064995","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1080\/02841850802064995","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T13:51:17Z","timestamp":1777384277000},"score":1,"resource":{"primary":{"URL":"http:\/\/journals.sagepub.com\/doi\/10.1080\/02841850802064995"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,7]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2008,7]]}},"alternative-id":["10.1080\/02841850802064995"],"URL":"https:\/\/doi.org\/10.1080\/02841850802064995","relation":{},"ISSN":["0284-1851","1600-0455"],"issn-type":[{"value":"0284-1851","type":"print"},{"value":"1600-0455","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,7]]}}}