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对经直肠超声导向穿刺和／或手术病理证实的１４例前列腺癌（ＰＣ）及５２例前列腺增生症（ＢＰＨ）进行诊断研究，并以１０例正常人作对照，探讨经直肠高频超声显像（ＴＲＵＳ）在鉴别ＢＰＨ与ＰＣ的临床价值。结果显示：ＴＲＵＳ诊断ＰＣ敏感性高达１００％，特异性８８％，准确性９１％。该法不仅有助于诊断，而且在ＰＣ分期中有参考价值。
14 cases of prostate cancer (PC) and 52 cases of benign prostatic hyperplasia (BPH) diagnosed by transrectal ultrasound guided puncture and / or surgical pathology were diagnosed. Ten normal subjects were used as controls to investigate the relationship between transrectal high frequency ultrasound imaging (TRUS) in the differential diagnosis of BPH and PC clinical value. The results showed that: TRUS diagnosis of PC sensitivity up to 100%, specificity 88%, accuracy 91%. This method not only helps diagnosis but also has reference value in PC staging.