经直肠超声诊断前列腺癌的初步探讨

A Study of Transrectal Ultrasonography Screening for Prostatic Adenocarcinoma

目的 为进一步提高早期诊断前列腺癌的准确率。方法 应用经直肠超声对临床拟诊 2 1例前列腺癌患者进行检查 ,观察前列腺内腺及外腺回声 ,发现形态不规则低回声区 ,仔细分辨与周围组织关系 ,特别是与精囊的关系。结果 经穿刺活检及手术病理诊断 19例为前列腺癌 ,2例为前列腺增生。结论 经直肠超声显示前列腺癌声像图的特征性、敏感性较腹部超声检查明显提高 ,尤其是病灶小 ,直肠指检及 CT检查均为阴性 ,对前列腺特异性抗原 (PSA)增高患者经本法检查更能体现其优越性 ,能显示 <0 .5 cm病灶 ,可指导穿刺活检 ,不失为对前列腺癌早期诊断的一种可靠方法。

Objective To raise the early diagnostic accuracy rate for prostatic adenocacinoma (PA). Methods Twenty one cases of PA were examined by transrectal ultrasonography. The echo reflection of outer and inner gland were observed to distinct the relationship between abnormal sharp hypoecoic and around tissure, especially seminal vesicles. Results 19 cases of PA were confirmed by pathology, the other 2 was hyperplasia of prostate. Conclusion The transrectal ultrasonography has more high specifity and sensitivity than ventri ultasonography, especially in the cases with small focus PA.