经直肠彩色多普勒超声诊断前列腺癌的临床探讨

目的探讨经直肠彩色多普勒超声诊断前列腺癌的效果。方法经直肠彩超通过直肠壁就显示前列腺，图像清晰细致，前列腺癌的检出率明显提高。结果对30例前列腺癌患者作回顾性分析，癌肿在周缘区21例，在移行区5例，累及整个前列腺4例。癌肿最大为38mm×26mm，最小为8mm×6mm，彩色多普勒超声发现癌肿边缘和内部有彩色血流信号，频谱阻力指数0．53～0．76，峰值流速（20～43）cm／s。彩色多普勒超声诊断前列腺癌23例，符合率为76．6％。结论经直肠彩色多普勒超声可作为一种普查和常规检查方法。

Diagnosis of Prostate Cancer by Transrectal Color Doppler Ultrasonography

Objective To investigate the diagnosis walue of prostate cancer by transrectal color doppler ultrasonography. Methods The transcrectal color doppler uhrasonography was used to show the prostate by the rectmn wall, whose picture is clear, which also improve the efficiency. Results As compared with 30 patients who got prostate cancer, 21 cases which the tumor is in marginal zone, 5cases which is in transition zone, and 4cases which is in the whole prostate. The biggest tumor is 38mm × 26mm,and the smallest is 8mm × 6mm.Collor doppler uhrasonography find the color blood signal in the inner and margin of the tumor.RI is 0.53-0.76,and PS is （ 20-43 ） cm/s. Conclusion Collor doppler ultrasonography diagnoses 23 prostate cancer cases. The coincidence is 76.6%. Transrectal color doppler ultrasonography is used for examining the disease.