良性前列腺增生向膀胱内突入部分所成夹角评价膀胱出口梗阻程度的意义

The relationship between the angle of projected prostate gland into the bladder and the severity of bladder outlet obstruction

目的探讨经腹超声测定良性前列腺增生（BPH）向膀胱内突入部分与膀胱所成夹角（APB）在膀胱出口梗阻（BOO）诊断中的价值。方法BPH患者110例，采用经腹矢状面超声测量膀胱基底到前列腺突入顶端的距离（IPP），计算与膀胱所形成夹角度（APB），同时行尿动力学检查，将B超结果、膀胱剩余尿量、IPSS与压力一流率测定结果进行相关性分析。结果110例患者，APB为0°～52°，APB〉20°者64例，〈20°者46例，当APB〉20°时，诊断BOO的敏感性为77．1％（64／83），特异性为100．0％（64／64）；当APB〈5°时，诊断无BOO的敏感性及特异性好于IPP。结论经腹B超检查前列腺向膀胱内突入部分矢状面图像直观感觉好，APB可作为尿动力学检查之外诊断BOO的补充方法，对BPH的临床分级分期模式有意义，但不能代替尿动力学检查。

Objective To study the clinical value of the relationship between the angle of projec ted prostate into the bladder（APB） and the degree of bladder outlet obstruction in BPH patients. Methods Transceabdomen ultrasonography was carried out for clinically diagnosed BPH patients. The ultrasonograph dat urodynamic data from 110 cases with BPH were analyzed. Results Among 110 cases , APB is from 0° to 52°. APB was greater than 20°in 64 cases while less than 20° in 46 cases. When APB was more than 20°, the sensibility and specificity of BOO were 77. 1% （64/83）and 100.0% （64/64）. When APB was less than 5°, sensibility and specificity of patients with no BOO was greater than using IPP. Conclusions APB and IPP may be methodans helping urodynamics diagnose BOO in BPH patients.