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目的探讨经直肠超声引导下10点法前列腺穿刺活检中前列腺癌阳性结果的分布情况。方法本组473例均因PSA>4ng/ml而进行经直肠超声引导下10点法宝前列腺穿刺活检,穿刺点为在标准的系统6点(前列腺旁正中线矢状切面尖部、中部、底部)的基础上,两外侧各增加2针(外侧周缘中部、底部)。本组患者年龄为41～85岁,平均65岁;PSA水平4.1～444ng/ml,平均15.05ng/ml;前列腺体积8.0～160.0ml,平均42.17ml。对穿刺各针的阳性率及各区域独立出现的阳性率进行分析。结果穿刺总阳性率为26.6%(126/473)。前列腺各穿刺部位的阳性率为:外侧底部23.7%(112/473)、外侧中部20.7%(98/473)、底部19.5%(92/473)、中部18.4%(87/473)、尖部23.9%(113/473)。只有该区域出现阳性的分布情况:外侧底部8.7%(11/126)、外侧中部5.6%(7/126)、底部2.4%(3/126)、中部3.2%(4/126)、尖部7.1%(9/126)。各穿刺部位的阳性率具有统计学差异(P<0.01)。结论经直肠超声引导下经直肠前列腺10点法穿刺活检术可明显提高前列腺癌的临床检出率。其前列腺的尖部、外侧底部和外侧中部的穿刺阳性率要比其他部位高。
Objective To investigate the distribution of prostate cancer positive results in 10-point prostate biopsy guided by transrectal ultrasound. Methods All 473 patients underwent transrectal ultrasound-guided 10-point prostate biopsy with PSA> 4 ng / ml at the standard system of 6 points (apical midline sagittal section, middle and bottom) Based on the two outer sides of the 2-pin (outer peripheral center, bottom). The patients aged 41 to 85 years, mean 65 years; PSA levels 4.1 ~ 444ng / ml, an average of 15.05ng / ml; prostate volume 8.0 ~ 160.0ml, an average of 42.17ml. The positive rate of each needling needle and the positive rate of each region independently were analyzed. Results The total positive rate of puncture was 26.6% (126/473). The positive rates of the puncture site of the prostate were 23.7% (112/473) of the lateral bottom, 20.7% (98/473) of the lateral middle, 19.5% (92/473) of the bottom, 18.4% (87/473) of the middle and 23.9 % (113/473). Only a positive distribution was observed in the region: 8.7% (11/126) at the lateral bottom, 5.6% (7/126) at the lateral middle, 2.4% (3/126) at the bottom, 3.2% (4/126) in the middle, and 7.1 % (9/126). The positive rate of each puncture site was statistically significant (P <0.01). Conclusion Transrectal ultrasound-guided transrectal prostate biopsies of 10 points can significantly improve the clinical detection rate of prostate cancer. The prostate of the tip, the lateral bottom and lateral puncture positive rate higher than other parts.