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目的:探讨三维能量多普勒超声预测经尿道前列腺电切术(TURP)术中出血的价值。方法:本实验对115例BPH患者术前进行超声检查,获得血管形成指数(VI)、血流指数(FI)、血管形成血流指数(VFI)、阻力指数(RI)及收缩期峰值血流速度(PSV)。TURP术中记录出血相关参数;术后切除标本计数MVD。比较超声定量参数、术中出血参数及微血管密度(MVD)的相关性。结果:VI、VFI与切除单位重量前列腺组织出血量正相关,相关系数为0.882、0.885(P<0.01);与MVD正相关,相关系数为0.870、0.830(P<0.01)。VI、VFI作为预测TURP术中出血量超过300ml的指标时,敏感性为0.692和0.641,特异性为0.697及0.737。结论:三维能量多普勒超声对评估前列腺内的血流具有临床意义。
Objective: To investigate the value of three-dimensional energy Doppler ultrasound in prediction of bleeding during transurethral resection of prostate (TURP). Methods: One hundred and fifteen patients with BPH underwent ultrasonography before operation. The indexes of vascularization index (VI), blood flow index (FI), blood flow index (VFI), resistance index (RI) and systolic peak blood flow Speed (PSV). Bleeding-related parameters were recorded during TURP; MVD was counted after resection. The correlation between ultrasound quantitative parameters, intraoperative bleeding parameters and microvessel density (MVD) was compared. Results: There was a positive correlation between VFI and the amount of prostate tissue hemorrhage per unit weight. The correlation coefficient was 0.882,0.885 (P <0.01). The positive correlation between VFI and MVD was 0.870,0.830 (P <0.01). VI, VFI as a predictor of bleeding in more than 300ml TURP indicators, the sensitivity of 0.692 and 0.641, the specificity of 0.697 and 0.737. Conclusion: Three-dimensional energy Doppler ultrasound is of clinical significance in assessing the blood flow in the prostate.