Clinical value of intravesical prostatic protrusion measured by transabdominal ultrasonography in judge-ment of benign prostatic obstruction / 中华泌尿外科杂志

ABSTRACT

Objective To assess the clinical value of intravesical prostatic protrusion (IPP) measured by transabdominal uhrasonography in judgement of benign prostatic obstruction (BPO). Methods According to pressure-flow study, 109 patients with benign prostatic hyperplasia were di-vided into 3 groups (non-obstruction, equivocal obstruction and obstruction). IPP was measured by transabdominal ultrasonography in all patients. The difference of IPP between different groups was studied and the correlation between IPP and the parameters reflecting BPO was analyzed. Results IPP value of the non-obstruction group, equivocal obstruction group and obstruction group was 2.7 ±1.2 mm, 2.9±1.4 mm and 15.4±6.5 mm. There was significant difference in IPP between the non-obstruction group, equivocal obstruction group and obstruction group (P<0.01). IPP was correlated with the parameters including Pdet. Qbeg, Pdet. Qmax, Pdet. Qend, Qmax and A-G number, Spearman's ratio was 0. 628, 0. 714, 0. 591, -0. 450 and 0. 729(P<0.01), respectively. The sensi-tivity and specificity of judging BPO were 89.9% and 97.5% if the cut-off was IPP≥10 mm. Con-clasion IPP measured by transabdominal ultrasonography could be a convenient and accurate method in diagnosis of BPO.