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目的:探讨经腹超声测定膀胱内前列腺突入程度(IPP)在良性前列腺梗阻(BPO)诊断中的价值。方法:收集2005年4月～2006年12月以下尿路症状就诊的BPH患者109例,应用经腹超声测定IPP,同时行尿流动力学检查测定最大尿流率(Qmax)、最大尿流率时逼尿肌压力(PdetQmax),并计算AG数(Pdetmax-2Qmax),根据AG数>40为梗阻,将所有患者分别归入非梗阻组(n=40)和梗阻组(n=69)。结果:在梗阻组和非梗阻组中IPP存在显著差异(P<0.01),IPP与AG数呈显著正相关(r=0.729,P=0.001)。若以IPP≥10mm为标准判断BPO,敏感度为89.9%,特异度97.5%,准确度为92.7%。结论:应用经腹超声测定IPP对BPO有良好的诊断价值。
Objective: To investigate the value of transvaginal sonography (IPP) in the diagnosis of benign prostatic obstruction (BPO). Methods: A total of 109 BPH patients with urinary tract symptoms were collected from April 2005 to December 2006. The IPP was determined by transabdominal sonography. The maximum flow rate (Qmax) and the maximum flow rate Decreased PdetQmax and Pdetmax-2Qmax were calculated. All patients were classified as non-obstructive (n = 40) and obstructive (n = 69) based on the number of AG> 40 as obstruction. Results: There was a significant difference in IPP between obstructive group and non-obstructive group (P <0.01). There was a significant positive correlation between IPP and AG number (r = 0.729, P = 0.001). If IPP ≥ 10mm as the standard to judge BPO, the sensitivity was 89.9%, specificity 97.5%, accuracy 92.7%. Conclusion: The application of transabdominal sonography in the determination of IPP has a good diagnostic value of BPO.