% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Radtke:130375, author = {J. P. Radtke$^*$ and T. H. Kuru$^*$ and D. Bonekamp$^*$ and M. Freitag$^*$ and M. B. Wolf$^*$ and C. D. Alt and G. Hatiboglu and S. Boxler and S. Pahernik and W. Roth$^*$ and M. C. Roethke$^*$ and H. P. Schlemmer$^*$ and M. Hohenfellner and B. A. Hadaschik}, title = {{F}urther reduction of disqualification rates by additional {MRI}-targeted biopsy with transperineal saturation biopsy compared with standard 12-core systematic biopsies for the selection of prostate cancer patients for active surveillance.}, journal = {Prostate cancer and prostatic diseases}, volume = {19}, number = {3}, issn = {1476-5608}, address = {Basingstoke}, publisher = {Stockton Press}, reportid = {DKFZ-2017-05454}, pages = {283 - 291}, year = {2016}, abstract = {Active surveillance (AS) is commonly based on standard 10-12-core prostate biopsies, which misclassify $~50\%$ of cases compared with radical prostatectomy. We assessed the value of multiparametric magnetic resonance imaging (mpMRI)-targeted transperineal fusion-biopsies in men under AS.In all, 149 low-risk prostate cancer (PC) patients were included in AS between 2010 and 2015. Forty-five patients were initially diagnosed by combined 24-core systematic transperineal saturation biopsy (SB) and MRI/transurethral ultrasound (TRUS)-fusion targeted lesion biopsy (TB). A total of 104 patients first underwent 12-core TRUS-biopsy. All patients were followed-up by combined SB and TB for restratification after 1 and 2 years. All mpMRI examinations were analyzed using PIRADS. AS was performed according to PRIAS-criteria and a NIH-nomogram for AS-disqualification was investigated. AS-disqualification rates for men initially diagnosed by standard or fusion biopsy were compared using Kaplan-Meier estimates and log-rank tests. Differences in detection rates of the SB and TB components were evaluated with a paired-sample analysis. Regression analyses were performed to predict AS-disqualification.A total of, $48.1\%$ of patients diagnosed by 12-core TRUS-biopsy were disqualified from AS based on the MRI/TRUS-fusion biopsy results. In the initial fusion-biopsy cohort, upgrading occurred significantly less frequently during 2-year follow-up $(20\%,$ P<0.001). TBs alone were significantly superior compared with SBs alone to detect Gleason-score-upgrading. NPV for Gleason-upgrading was $93.5\%$ for PIRADS⩽2. PSA level, PSA density, NIH-nomogram, initial PIRADS score (P<0.001 each) and PIRADS-progression on consecutive MRI (P=0.007) were significant predictors of AS-disqualification.Standard TRUS-biopsies lead to significant underestimation of PC under AS. MRI/TRUS-fusion biopsies, and especially the TB component allow more reliable risk classification, leading to a significantly decreased chance of subsequent AS-disqualification. Cancer detection with mpMRI alone is not yet sensitive enough to omit SB on follow-up after initial 12-core TRUS-biopsy. After MRI/TRUS-fusion biopsy confirmed AS, it may be appropriate to biopsy only those men with suspected progression on MRI.}, cin = {E010 / G150}, ddc = {610}, cid = {I:(DE-He78)E010-20160331 / I:(DE-He78)G150-20160331}, pnm = {315 - Imaging and radiooncology (POF3-315)}, pid = {G:(DE-HGF)POF3-315}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:27184812}, doi = {10.1038/pcan.2016.16}, url = {https://inrepo02.dkfz.de/record/130375}, }