Abstract: ObjectiveTo investigate the clinical value of transrectal ultrasound-guided improved 13-core prostate biopsy in the detection of prostate cancer. MethodsRetrospective analysis was conducted in the clinical data of 82 clinically suspected prostate cancer patients in Shaanxi Provincial People′s Hospital from October 2015 to October 2016. All patients were undergone transrectal ultrasound-guided improved 13-core prostate biopsy and surgical treatment, and the prostate biopsy results were compared with the postoperative pathological results. The accuracy of the improved 13-core prostate biopsy and the standard 6-core prostate biopsy was compared. The complications of improved 13-core prostate biopsy were also discussed. ResultsThe diagnostic results of prostate biopsy included prostate cancer in 26 patients and benign prostatic hyperplasia (BPH) in 54 patients. The diagnostic results of 80 patients are consistent with postoperative pathological examination. Two patients were diagnosed as BPH by biopsy, but confirmed to be prostate cancer by postoperative pathological examination. The accuracy of the improved 13-core prostate biopsy and the standard 6-core prostate biopsy were 97.6% (80/82) and 84.1% (69/82) respectively, and the difference showed statistical significance (P=0.023). No severe complications were found in patients who underwent transrectal ultrasound improved 13-core prostate biopsy. ConclusionTransrectal ultrasound guided improved 13-core prostate biopsy can increase the detection rate significantly. It is safe and efficacious, and can be widely used in clinic.

Key words: Prostatic neoplasms, Biopsy, Diagnosis