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目的 探讨经直肠彩色多普勒超声对前列腺移行带增生结节和癌结节的诊断价值。方法 经直肠彩色多普勒超声对 37例增生结节和 1 4例癌结节的形态、内部回声、边缘情况进行对比观察 ,并测量动脉收缩期最大血流速度 (Vs)、阻力指数 (RI)、搏动指数 (PI)。并进行统计学处理。结果 前列腺增生结节表现为形态规则、边界清晰、血流对称分布。癌结节表现为形态不规则、边界毛糙、血流丰富且非对称性分布。各项血流主要参数 (Vs、RI、PI)癌结节相对增生结节明显增大 (P<0 .0 5 )。结论 前列腺移行带癌结节比增生结节血流灌注增加、速度增快、阻力增高。经直肠彩色多普勒超声对我们发现和判断前列腺移行带内结节的性质有重要价值
Objective To investigate the value of transrectal color Doppler ultrasound in the diagnosis of benign prostatic hyperplasia and nodules. Methods The morphology, internal echo and edge of 37 cases of proliferative nodules and 14 cases of cancerous nodules were compared by rectal color Doppler ultrasonography. The maximum systolic velocity (Vs), resistance index (RI) ), Pulsatility index (PI). And statistical analysis. Results Benign prostatic hyperplasia showed nodules with regular morphology, clear boundary and symmetrical distribution of blood flow. Cancer nodules showed irregular shape, rough boundary, rich blood flow and asymmetry distribution. The major parameters of blood flow (Vs, RI, PI) were significantly increased (P <0.05). Conclusion Prostate transitional carcinoma with nodular hyperplasia nodules increased blood flow perfusion, faster, higher resistance. Transrectal color Doppler ultrasound is of great value in the detection and characterization of the nodules in the prostate