摘要
目的探讨经直肠腔内超声(ERUS)术前评价直肠癌周围淋巴结转移的应用价值。方法收集53例经病理证实的原发性直肠癌患者,行ERUS检查,通过淋巴结的大小判断其良、恶性,淋巴结最大径≤5mm者判定为良性,>5mm者判定为恶性。结果超声判断直肠癌周围淋巴结转移与病理结果的一致性欠佳(Kappa=0.228,P>0.05),其敏感度为80.00%(16/20),特异度为41.67%(5/12),准确率为65.63%(21/32)。以淋巴结最大径5.25mm作为诊断界值时,ROC曲线下面积最大(P<0.01),为0.835,其诊断转移性淋巴结的敏感度为85.00%,特异度为66.70%。结论 ERUS评价原发性直肠癌局部淋巴结转移的能力有限,但仍可作为临床术前评估直肠癌的辅助检查方法。
Objective To explore the value of endorectal ultrasound （ERUS） in preoperative assessment of perirectal nodes metastasis in patients with rectal carcinoma. Methods Fifty-three patients with primary rectal carcinoma confirmed by pathology underwent ERUS. The lymph nodes were classified as benign or malignant on the basis of size. The maximum diameter of benign lymph node was ≤5 mm, of malignant lymph nodes was 〉5 mm. Results The consistency of ERUS and pathology results was not good for judgement of perirectal nodes involvement （Kappa=0.228, P〉0.05）.The sensitivity, specificity and accuracy of ERUS was 80.00% （16/20）, 41.67% （5/12） and 65.63% （21/32）, respectively. Using the maximum diameter of lymph node ≥5.25 mm as optimal diagnostic indicator, the area under the ROC curve was the largest （0.835, P〈0.01）, and the sensitivity was 85.00%, the specificity was 66.70%. Conclusion The availability of ERUS in the assessment of perirectal nodes metastasis in patients with rectal carcinoma is limited, while ERUS can be used for preoperative evaluation of rectal carcinoma as an auxiliary examination method.
出处
《中国医学影像技术》
CSCD
北大核心
2013年第2期247-250,共4页
Chinese Journal of Medical Imaging Technology
关键词
超声
高强度聚焦
经直肠
淋巴结
肿瘤转移
直肠肿瘤
Ultrasound, high-intensity focused, transrectal
Lymph nodes
Neoplasm metastasis
Rectal neoplasms
