MP09-19 SUPERIOR DIAGNOSTIC ACCURACY OF MAGNETIC RESONANCE IMAGING OVER COMPUTED TOMOGRAPHY FOR A SMALL RENAL MASS

You have accessJournal of UrologyCME1 Apr 2023MP09-19 SUPERIOR DIAGNOSTIC ACCURACY OF MAGNETIC RESONANCE IMAGING OVER COMPUTED TOMOGRAPHY FOR A SMALL RENAL MASS Jinu Kim, Joon Chae Na, Hyung Ho Lee, Won Sik Ham, Woong Kyu Han, and Youngheun Jo Jinu KimJinu Kim More articles by this author , Joon Chae NaJoon Chae Na More articles by this author , Hyung Ho LeeHyung Ho Lee More articles by this author , Won Sik HamWon Sik Ham More articles by this author , Woong Kyu HanWoong Kyu Han More articles by this author , and Youngheun JoYoungheun Jo More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003224.19AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: To analyze whether computed tomography (CT) or magnetic resonance imaging (MRI) reports are consistent for diagnosis of the same renal mass. METHODS: We retrospectively reviewed 1,216 patients between January 2017 and December 2021 in our institute. Patients who had both CT and MRI reports prior to surgery were included. We compared the diagnostic accuracy of the CT and MRI results with the final pathological outcome. The patients were divided into two groups according to the consistency of reports: the consistent group and the inconsistent group. The inconsistent group was further divided into two subgroups: Group 1 included patients with benign findings on CT but malignant findings on MRI. Group 2 included cases with malignant findings on CT but benign findings on MRI. RESULTS: Among 410 patients, 68 cases (16.6%) were benign. The sensitivity, specificity, and accuracy of the MRI and CT scans were 91.2%, 36.8%, and 82.2%, and 84.8%, 41.2%, and 77.6%, respectively. The consistent group included 335 patients (81.7%), whereas the inconsistent group was 75 cases (18.3%). The mean renal mass size was significantly smaller in the inconsistent group than in the consistent group (1.84±0.75 cm vs. 2.31±0.84 cm, respectively, p<0.001). For a renal mass size of 2–4 cm, group 1 showed more predictive of malignancy than that for patients in group 2. CONCLUSIONS: A smaller renal mass size affects the discrepancy of findings from CT and MRI reports. MRI showed better diagnostic accuracy in discrepant findings between CT and MRI reports for the detection of malignancy. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e112 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Jinu Kim More articles by this author Joon Chae Na More articles by this author Hyung Ho Lee More articles by this author Won Sik Ham More articles by this author Woong Kyu Han More articles by this author Youngheun Jo More articles by this author Expand All Advertisement PDF downloadLoading ...