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    Abstract: PURPOSE: To test the hypothesis that MRI-TRUS fusion technique can increase the detection rate of prostate cancer (PC) in patients with previously negative biopsy. METHODS: Patient records of men with persisting suspicion for PC after previous negative biopsy having undergone either extensive transrectal prostate biopsies (MD Anderson protocol; MDA), transperineal saturation (STP) or magnetic resonance imaging (MRI)/transrectal ultrasound (TRUS) fusion transperineal biopsies (MTTP) in three consecutive time intervals were reviewed retrospectively. The respective approach was the standard for the above indication at these episodes. In Cambridge, 70 patients underwent MDA biopsies, 75 STP underwent biopsies and 74 patients underwent MTTP biopsies. In total, 164 MTTP patients with the same indication from Heidelberg were analysed as reference standard. In total, 383 men were included into analysis. Low-grade PC was defined as Gleason score 7 (3 + 4) or lower. RESULTS: Even though MTTP patients had significantly larger prostates, the overall cancer detection rate for PC was the highest in MTTP (24.2 % MDA, 41.3 % STP, 44.5 % MTTP, p = 0.027, Kruskal-Wallis test). The detection rate for clinically relevant high-grade PC was highest in MTTP; however, this did not reach statistical significance compared with MDA (23.5 % MDA, 12.9 % STP, 27.2 % MTTP, p = 0.25, Fischer's exact test). Comparing MTTP between Cambridge and Heidelberg, detection rates did not differ significantly (44.5 vs. 48 %, p = 0.58). There was a higher detection rate of high-grade cancer in Heidelberg. (36.3 vs. 27.2 %, p = 0.04). CONCLUSION: Patients whom are considered for repeat biopsies may benefit from undergoing MRI-targeted TRUS fusion technique due to higher cancer detection rate of significant PC.
    Type of Publication: Journal article published
    PubMed ID: 24917295
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