端扫式直肠探头对高位直肠癌的诊断价值

Diagnosis of transrectal ultrasound with head scanning probe in detecting upper rectal carcinoma

目的探讨端扫式直肠超声对高位直肠癌患者进行术前腔内检查(TRUS)的方法与临床价值。方法采用端扫式经直肠探头对36例高位直肠癌患者行术前超声检查和超声分期并与手术病理结果及分期作对比研究。结果36例直肠癌超声声像表现为低回声团块,直肠癌超声分期与病理分期符合30例(30/36),术前腔内检查检出直肠癌周围淋巴结转移与病理对照结果的敏感性为93%,特异性为86%。结论端扫式直肠腔内超声对高位直肠癌诊断有明显的优越性,对高位直肠癌术前分期有重要价值。应用适当的检测操作技巧可以提高诊断正确率与成功率。

Objective To probe the methods and clinical value of transrectal ultrasound (TRUS) with head scanning probe in detecting upper rectal carcinoma. Methods Thirty six patients underwent TRUS with head scanning probe, and the preoperative ultrasonic findings were compared with the pathological results. Results Rectal carcinoma appeared as a hypoechoic mass on TRUS, which had an overall accuracy rate of 30 caseas(30/36) in the staging diagnosis of rectal cancer. The sensitivity and specificity of TRUS in the diagnosis of lymph node metastasis were 93 % and 86%, respectively. Conclusions TRUS with head scanning probe is of great value for the pre-operative staging of upper rectal carcinoma and has special advantages for upper rectal carcinoma. Proper scan operation skill may improve the diagnostic accuracy rate.