PMID- 29281647 OWN - NLM STAT- MEDLINE DCOM- 20180129 LR - 20220409 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 12 IP - 12 DP - 2017 TI - Repeat multiparametric MRI in prostate cancer patients on active surveillance. PG - e0189272 LID - 10.1371/journal.pone.0189272 [doi] LID - e0189272 AB - INTRODUCTION: This study was conducted to describe the changes in repeat multiparametric MRI (mpMRI) occurring in prostate cancer (PCa) patients during active surveillance (AS), and to study possible associations between mpMRI-related parameters in predicting prostate biopsy (Bx) Gleason score (GS) upgrading >3+3 and protocol-based treatment change (TC). MATERIALS AND METHODS: The study cohort consisted of 76 AS patients with GS 3+3 PCa and at least two consecutive mpMRIs of the prostate performed between 2006-2015. Patients were followed according to the Prostate Cancer Research International Active Surveillance (PRIAS) protocol and an additional mpMRI. The primary end points were GS upgrading (GU) (>3+3) in protocol-based Bxs and protocol-based TC. RESULTS: Out of 76 patients, 53 (69%) had progression (PIRADS upgrade, size increase or new lesion[s]), while 18 (24%) had radiologically stable disease, and 5 (7%) had regression (PIRADS or size decrease, disappearance of lesion[s]) in repeat mpMRIs during AS. PIRADS scores of 4-5 in the initial mpMRI were associated with GU (p = 0.008) and protocol-based TC (p = 0.009). Tumour progression on repeat mpMRIs was associated with TC (p = 0.045) but not with GU (p = 1.00). PIRADS scores of 4-5 predict GU (sensitivity 0.80 [95% confidence interval (CI); 0.51-0.95, specificity 0.62 [95% CI; 0.52-0.77]) with PPV and NPV values of 0.34 (95% CI; 0.21-0.55) and 0.93 (95% CI; 0.80-0.98), respectively. CONCLUSION: mpMRI is a useful tool not only to select but also to monitor PCa patients on AS. FAU - Eineluoto, Juho T AU - Eineluoto JT AUID- ORCID: 0000-0003-1109-2994 AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Jarvinen, Petrus AU - Jarvinen P AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Kenttamies, Anu AU - Kenttamies A AD - Medical Imaging Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Kilpelainen, Tuomas P AU - Kilpelainen TP AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Vasarainen, Hanna AU - Vasarainen H AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Sandeman, Kevin AU - Sandeman K AD - Department of Pathology (HUSLAB), University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Erickson, Andrew AU - Erickson A AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. AD - Department of Pathology (HUSLAB), University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Mirtti, Tuomas AU - Mirtti T AD - Department of Pathology (HUSLAB), University of Helsinki and Helsinki University Hospital, Helsinki, Finland. AD - Finnish Institute for Molecular Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. AD - Medicum, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Rannikko, Antti AU - Rannikko A AD - Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. LA - eng PT - Journal Article DEP - 20171227 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Adult MH - Aged MH - Biopsy MH - Humans MH - Magnetic Resonance Imaging/*methods MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Prostatic Neoplasms/*diagnostic imaging/pathology MH - *Watchful Waiting PMC - PMC5744936 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2017/12/28 06:00 MHDA- 2018/01/30 06:00 PMCR- 2017/12/27 CRDT- 2017/12/28 06:00 PHST- 2017/08/02 00:00 [received] PHST- 2017/11/22 00:00 [accepted] PHST- 2017/12/28 06:00 [entrez] PHST- 2017/12/28 06:00 [pubmed] PHST- 2018/01/30 06:00 [medline] PHST- 2017/12/27 00:00 [pmc-release] AID - PONE-D-17-28674 [pii] AID - 10.1371/journal.pone.0189272 [doi] PST - epublish SO - PLoS One. 2017 Dec 27;12(12):e0189272. doi: 10.1371/journal.pone.0189272. eCollection 2017.