中国临床医学影像杂志2017，Vol.28Issue(2)：112-115,4.
MRI在评估直肠癌局部淋巴结转移中的应用价值
The application value of MRI in the diagnosis of regional lymph node metastasis in rectal cancer
戴鑫 1徐青 1余静 1李燕 1施海彬1
作者信息
- 1. 南京医科大学第一附属医院江苏省人民医院放射科,江苏南京210029
- 折叠
摘要
Abstract
Objective:To evaluate the application of MRI in the diagnosis of regional lymph node metastasis in rectal cancer.Methods:During the period from May to December 2015,94 patients with pathologically-proved rectal underwent MRI were included.The clinical data were retrospectively analyzed.The short-axis diameter,margin,signal and ADC values of the target node and the signal of perirectal fat were observed and recorded.Patients were assigned to the malignant node or benign node group according to pathological analysis.Chi-square (x2) trend test was used to test the margin,signal and the signal of perirectal fat of metastasizing lymph nodes and nonmetastasizing lymph nodes,short-axis diameter and ADC values were compared using the t-test.Multivariate analysis to determine independent significant individual variables by multiple Logistic regression analysis.ROC curve analysis was done to evaluate the diagnostic efficiency.Results:The margin,signal of lymph nodes and signal of perrectal fat showed correlation with the lymph node metastasis(P＜0.05).The short-axis diameter of metastatic nodes and non-metastatic nodes was (6.25±2.25) mm and (4.80±1.38)mm respectively,the differences between the two groups were significant (P＜0.05).The short-axis diameter,margin,signal and the signal of perirectal fat were proved to be significant independent predictors of lymph node metastasis by Logistic regression analysis.The AUC value showed that margin carried the highest credibility for the diagnosis of lymph node metastasis,and the next were the signal of perirectal fat and signal.Conclusion:It was helpful to improve the diagnosis of lymph node metastasis by considering the short-axis diameter,margin and signal of the lymph nodes and the signal of perirectal fat,especially the margin and the signal of perirectal fat.关键词
直肠肿瘤/肿瘤转移/磁共振成像Key words
Rectal neoplasms/Neoplasm metastasis/Magnetic resonance imaging分类
医药卫生引用本文复制引用
戴鑫,徐青,余静,李燕,施海彬..MRI在评估直肠癌局部淋巴结转移中的应用价值[J].中国临床医学影像杂志,2017,28(2):112-115,4.
