PT - JOURNAL ARTICLE AU - FUKUI, YUDAI AU - YAMADA, YASUTAKA AU - SAKAMOTO, SHINICHI AU - HORIKOSHI, TAKURO AU - ZHAO, XUE AU - SATO, KODAI AU - NANBA, SAKIE AU - KUBOTA, YOSHIHIRO AU - KANESAKA, MANATO AU - FUJIMOTO, AYUMI AU - SHIBATA, HIROKI AU - GOTO, YUSUKE AU - SAZUKA, TOMOKAZU AU - IMAMURA, YUSUKE AU - UNO, TAKASHI AU - ICHIKAWA, TOMOHIKO TI - Preoperative PI-RADS v2.1 Scoring System Improves Risk Classification in Patients Undergoing Radical Prostatectomy AID - 10.21873/anticanres.16776 DP - 2023 Dec 01 TA - Anticancer Research PG - 5705--5712 VI - 43 IP - 12 4099 - http://ar.iiarjournals.org/content/43/12/5705.short 4100 - http://ar.iiarjournals.org/content/43/12/5705.full SO - Anticancer Res2023 Dec 01; 43 AB - Background/Aim: The purpose of this study was to examine the prognostic value of Prostate imaging-reporting and data system (PI-RADS) v2.1 scoring system in patients who underwent radical prostatectomy (RP). Patients and Methods: Clinical data of 294 patients who received RP between 2006 and 2018 were reviewed and multiple parameters including PI-RADS v2.1 score were employed to identify predictive factors for biochemical recurrence (BCR). Tumor volume was calculated from prostatectomy specimens. Results: Median age at operation and initial PSA level were 67 years old and 7.68 ng/ml, respectively. 44.9 and 24.8% of patients were diagnosed with PI-RADS score 4 and 5 prior to biopsies, respectively. BCR was observed in 17% of patients and median observation period was 63.43 months. After multivariate analysis, PI-RADS v2.1 score 5 [hazard ratio (HR)=2.24, p=0.0124] was an independent predictive factor of BCR in addition to clinical T stage (≥2c) (HR=2.32, p=0.0093) and biopsy Gleason score (≥8) (HR=2.81, p=0.0007). Furthermore, PI-RADS score 5 significantly stratified the prognosis in D’Amico intermediate- and high-risk groups (p=0.0174 and p=0.0013, respectively). We established novel risk classifications including PI-RADS v2.1 score and found that prognostic capabilities were improved as compared to the D’Amico classification. Conclusion: The PI-RADS v2.1 score exhibited significant prognostic value in patients with localized prostate cancer following RP. Risk classifications based on PI-RADS v2.1 score might provide better ability for predicting oncological outcomes as compared to the D’Amico classification system.