微超声探头检查在结直肠癌分期中的应用

Application of ultrasonic miniature probe in preoperative staging of colorectal carcinoma

目的研究微超声探头(UMP)检查在结直肠癌T、N分期的准确率及结直肠癌术前分期中的诊断价值。方法选择手术治疗的53例结直肠癌患者术前接受12 MHz UMP检查,以手术探查和术后组织病理诊断结果为标准,评价UMP检查诊断结直肠癌浸润深度(T分期)和局部淋巴结转移(N分期)的准确率。结果UMP检查诊断结直肠癌T分期的准确率为86%,诊断早期结直肠癌T分期的准确率为100%。UMP检查诊断结直肠癌N分期的准确率、灵敏度、特异性分别为81%、77%、84%。结论UMP检查是诊断结直肠癌T分期的有效方法,诊断早期结直肠癌T分期及肿瘤狭窄患者术前分期的应用价值尤为突出,尤其适用于肿瘤狭窄患者的分期。

Objective To evaluate the diagnostic accuracy of ultrasound miniature probe （UMP）examination in tumor invasion （T staging） and local lymphatic node metastasis （N staging） for colorectal carcinoma. Methods Preoperative UMP examinations （12 MHz） were performed on 53 patients with colorectal carcinoma undergoing surgeries. The diagnosis accuracy of UMP examination in T and N staging was determined by comparison of the results of operation exploration and histopathologic findings. Results The accuracy in T staging for colorectal carcinoma was 86% with UMP examination, and that for early stage colorectal carcinoma was 100%. The accuracy, sensitivity and specificity in N staging for colorectal carcinoma were 81% , 77% , and 84% , respectively with UMP examination. Conclusion UMP examination works well in determining T stage of colorectal carcinoma, especially for early stage colorectal carcinoma and those with tumor stenosis.