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目的探讨经直肠超声引导5区13点前列腺穿刺活检在诊断前列腺癌的应用价值。方法拟诊前列腺癌患者139例,行经直肠超声引导13点前列腺穿刺(13点组)活检,结果与10点穿刺法(不包括前列腺中线尖部、中部和底部3点)(10点组)比较,分析前列腺癌检出率与血清前列腺特异抗原(PSA)水平和前列腺体积的关系。结果两组前列腺癌总检出率相仿(52.52%vs.49.64%)(P>0.05)。两组前列腺癌检出率随着血清PSA水平升高而增加,随着前列腺体积增大而降低(P<0.05)。结论与10点法比较,经直肠超声引导下13点穿刺并没有明显提高前列腺癌检出率;对于小体积的前列腺,10点穿刺术可作为临床首选。
Objective To investigate the value of transrectal ultrasound-guided 13-point prostate biopsy in the diagnosis of prostate cancer. Methods One hundred and ninety-three patients diagnosed as prostate cancer underwent transrectal ultrasound-guided 13-point prostate biopsy (13-point group) biopsy. The results were compared with those of 10-point puncture (excluding the prostatic midline, middle and bottom 3 points) , The relationship between the detection rate of prostate cancer and the level of serum prostate-specific antigen (PSA) and prostate volume was analyzed. Results The total positive rates of prostate cancer in both groups were similar (52.52% vs.49.64%) (P> 0.05). The detection rate of prostate cancer increased with the increase of serum PSA level and decreased with the increase of prostate volume (P <0.05). Conclusion Compared with the 10-point method, transrectal ultrasound-guided 13-point puncture did not significantly improve the detection rate of prostate cancer. For a small volume of prostate, 10-point puncture can be used as the clinical choice.