MP44-07 INTER-INTRAREADER ASSESSMENTS WITH PI-RADS VERSION 2.1 FROM MRI/TRUS SOFTWARE FUSION PROSTATE BIOPSY

Abstract

You have accessJournal of UrologyCME1 Apr 2023MP44-07 INTER-INTRAREADER ASSESSMENTS WITH PI-RADS VERSION 2.1 FROM MRI/TRUS SOFTWARE FUSION PROSTATE BIOPSY Won Hoon Song, Youn Ha Lee, Dan Bi Lee, Jae Yeon Kim, Seung Soo Lee, Jong Kil Nam, and Sung Woo Park Won Hoon SongWon Hoon Song More articles by this author , Youn Ha LeeYoun Ha Lee More articles by this author , Dan Bi LeeDan Bi Lee More articles by this author , Jae Yeon KimJae Yeon Kim More articles by this author , Seung Soo LeeSeung Soo Lee More articles by this author , Jong Kil NamJong Kil Nam More articles by this author , and Sung Woo ParkSung Woo Park More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003290.07AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: In multiparametric MRI (mpMRI), there is an inter-intrareader variability according to Prostate Imaging Reporting and Data System (PI-RADS) Version 2.1. We have evaluated the inter-intrareader assessments with PI-RADS to improve the detection rate of prostate cancer from MRI/TRUS software fusion prostate biopsy METHODS: We evaluated 210 patients who underwent multiparametric MRI for MRI/TRUS software fusion prostate biopsy from October 2019 to February 2021. Examinations were interpreted by four readers including two radiologists and two urologists from our institution. The readers independently viewed all 210 examinations, and the 2.1 version of the PI-RADS grading scale was used to interpret MRI images. The interpretations were performed in two sessions. After the first session, a training intervention was conducted to improve inter-intrareader agreement with PI-RADS scores of the peripheral zone (PZ) and transitional zone (TZ). We used the Fleiss’s kappa coefficient (κ) to evaluate the inter-intrareader reliability. RESULTS: The κ between all readers were 0.427 (p<0.001) in the first session, and 0.466 (p<0.001) in the second session, which shows a moderate level of agreement. Higher agreement was observed among the two radiologists, with the κ of 0.563 (p<0.001) in the first session, and 0.708 (p<0.001) in the second session. Interreader agreement had a tendency to improve in the second session, after the training intervention took place. For all readers, the level of agreement was also stronger in the peripheral zone compared to the the transitional zone. Patients were categorized according to the PI-RADS score of 4 or more points and less than 3 points, and the two groups were compared. The κ between all readers for the peripheral zone was 0.761 (p<0.001) in the first session, and 0.599 (p<0.001) in the second session. This shows a higher agreement in the scoring of the peripheral zone. In the radiologists group, the level of agreement for PZ was 0.791 (p<0.001) and 0.733 (p<0.001), showing a substantial level of agreement. We evaluated the intrareader agreement of the two individual radiologists. The κ was higher when the PIRADS score was 4 or higher, achieving a substantial level of agreement, while interpretation became heterogeneous when PIRADS score was lower. CONCLUSIONS: Readers achieved moderate agreement for PI-RADS version 2.1 and benefitted from a training session. Scoring the PZ achieved better agreement than the TZ. Interreader agreement was stronger when PI-RADS score was 4 or higher. Interreader agreement can be improved with feedback and training. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e613 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Won Hoon Song More articles by this author Youn Ha Lee More articles by this author Dan Bi Lee More articles by this author Jae Yeon Kim More articles by this author Seung Soo Lee More articles by this author Jong Kil Nam More articles by this author Sung Woo Park More articles by this author Expand All Advertisement PDF downloadLoading ...