Computer-aided transrectal ultrasound: does prostate HistoScanning™ improve detection performance of prostate cancer in repeat biopsies?

BMC Urology

Technical Advance

C. Hamann¹  A. Trettel¹  C M Naumann¹  K P Jünemann¹  Moritz Franz Hamann¹ 

[1] Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Arnold Heller Str. 3, 24105, Kiel, Germany;

关键词: Prostate;    Prostate cancer;    Transrectal ultrasonography;    HistoScanning;    Prostate biopsy;   

DOI  :  10.1186/s12894-015-0072-z

 received in 2015-02-06, accepted in 2015-07-20,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundAn imaging tool providing reliable prostate cancer (PCa) detection and localization is necessary to improve common diagnostic pathway with ultrasound targeted biopsies. To determine the performance of transrectal ultrasound (TRUS) augmented by prostate HistoScanningTM analysis (PHS) we investigated the detection of prostate cancer (PCa) foci in repeat prostate biopsies (Bx).Methods97 men with a mean age of 66.2 (44 – 82) years underwent PHS augmented TRUS analysis prior to a repeat Bx. Three PHS positive foci were defined in accordance with 6 bilateral prostatic sectors. Targeted Bx (tBx) limited to PHS positive foci and a systematic 14-core backup Bx (sBx) were taken. Results were correlated to biopsy outcome. Sensitivity, specificity, predictive accuracy, negative predictive value (NPV) and positive predictive value (PPV) were calculated.ResultsPCa was found in 31 of 97 (32 %) patients. Detection rate in tBx was significantly higher (p < .001). Detection rate in tBx and sBx did not differ on patient level(p ≥ 0.7). PHS sensitivity, specificity, predictive accuracy, PPV and NPV were 45 %, 83 %, 80 %, 19 % and 95 %, respectively.ConclusionsPHS augmented TRUS identifies abnormal prostatic tissue. Although sensitivity and PPV for PCa are low, PHS information facilitates Bx targeting to vulnerable foci and results in a higher cancer detection rate. PHS targeted Bx should be considered in patients at persistent risk of PCa.

【 授权许可】

CC BY   
© Hamann et al. 2015