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目的:比较经直肠超声造影与经直肠常规超声诊断前列腺癌的各自优势。方法:选择前列腺癌患者213例,年龄54~83岁,平均71岁。检测PSA为4.12~150.00μg/L,平均22.53μg/L。先行经直肠常规超声检查,再行经直肠前列腺超声造影检查,绘制时间强度曲线(TIC曲线),分别判读常规超声和超声造影结果。随后行12针前列腺系统穿刺活检。结果:213例患者中,常规超声诊断前列腺癌123例,超声造影诊断前列腺癌113例,穿刺活检病理确诊前列腺癌99例。常规超声与病理检查的诊断符合率为53.52%,超声造影与病理检查的诊断符合率为80.28%。两种诊断方法敏感度、特异度、假阳性率、假阴性率、漏诊率、病理检查符合率差异均有统计学意义(P<0.05)。结论:经直肠超声造影可灵敏显示前列腺血流分布情况,对前列腺癌的诊断有较高的准确性,值得推广使用。
Objective: To compare the respective advantages of transrectal ultrasound and conventional transrectal ultrasound in the diagnosis of prostate cancer. Methods: 213 cases of prostate cancer were selected, aged from 54 to 83 years, with an average of 71 years. The detection PSA was 4.12 ~ 150.00μg / L with an average of 22.53μg / L. First rectal routine ultrasound examination, and then rectovaginal sonography, time intensity curve (TIC curve), respectively, interpretation of conventional ultrasound and contrast-enhanced ultrasound results. Followed by 12-pin prostate biopsy. Results: Of the 213 patients, 123 cases were diagnosed by conventional ultrasound, 113 cases were diagnosed by contrast-enhanced ultrasound and 99 cases were diagnosed by biopsy. The coincidence rate of routine ultrasound and pathological examination was 53.52%. The coincidence rate of CEUS and pathological examination was 80.28%. The sensitivity, specificity, false positive rate, false negative rate, misdiagnosis rate and pathological examination coincidence rate of the two diagnostic methods were statistically significant (P <0.05). Conclusion: Transrectal ultrasonography can be sensitive to the distribution of prostatic blood flow, which has a high accuracy for the diagnosis of prostate cancer and is worth promoting.