经直肠超声引导活检前列腺癌病理与声像图对照分析

目的 探讨前列腺癌声像图特征,提高前列腺癌活检阳性率.方法 对血清前列腺特异性抗原(prostate specific antigen,PSA)＞4 ng/mL或直肠指检异常的患者行经直肠超声引导下前列腺穿刺活检,不同穿刺部位的标本分别标记送病理,对89例确诊为前列腺癌患者的病理结果与声像图对照分析.结果 89例患者中声像图未提示明显异常35例(39 3％),前列腺外周带或移行带见结节25例(28.1％),外周带、移行带分界不清22例(24.7％),前列腺见明显低回声团块7例(7.9％).彩色多普勒显示:无明显异常65例,局部血流汇聚或血管绕行7例,血流弥漫性增多10例,血流减少7例.二维声像图和彩色多普勒对显示前列腺癌的灵敏度分别为61％和25％.结论 前列腺外腺低回声结节、前列腺内外腺界不清、前列腺团块、彩色血流汇聚或绕行的结节均高度提示前列腺癌,是穿刺活检的重点.

Comparison of ultrasonography and pathology of prostate carcinoma of biopsy guided by transrectal ultrasound

Objective To study the ultrasonographic features of the prostate carcinoma and improve the positive rate of prostate biopsy.Methods The patients who have either serum PSA > 4ng/ml or abnormal findings of digital rectal examination underwent transrectal ultrasound guided biopsy and the biopsy examples were respectively marked.89 patients with prostate carcinoma proved by pathology was studed by comparison of the pathology and ultrasonography.Results Among the 89 patients,35 cases(39%)had not significant abno...