多模态磁共振成像评估乳腺癌腋窝淋巴结转移  

Assessment of axillary lymph node metastasis in breast cancer by multimodal MRI

作　　者：徐静[1] 马光辉 刘彭华[1] Xu Jing;Ma Guanghui;Liu Penghua(CT Room,Handan First Hospital,Handan 056002,China;The Third Department of General Surgery,Handan First Hospital,Handan 056002,China)

机构地区：[1]邯郸市第一医院CT室,邯郸056002 [2]邯郸市第一医院普外三科,邯郸056002

出　　处：《中国医学装备》2024年第5期64-68,共5页China Medical Equipment

基　　金：河北省医学科学研究课题(20210178)。

摘　　要：目的:分析多模态磁共振成像(MRI)在乳腺癌腋窝淋巴结转移(ALNM)评估效果以及可靠指标。方法:选取2020年1月至2021年11月在邯郸市第一医院确诊并接受手术治疗的152例女性乳腺癌患者,根据术后腋窝淋巴结病理结果将其分为ALNM组(45例)和非ALNM组(107例)。利用磁共振动态增强成像(DCE-MRI)、T2加权成像(T2WI)和弥散加权成像(DWI)技术对乳腺癌ALNM做出判定。结果:多模态MRI诊断灵敏度为82.22%,特异度为96.26%,阳性预测值为90.24%,阴性预测值为92.79%,诊断符合率为92.11%。logistic回归分析显示,肿瘤最大径、ADC值与淋巴结转移密切相关。受试者工作特征(ROC)曲线分析,肿瘤最大径ROC曲线下面积(AUC)为0.797(95%CI:0.694~0.842,P<0.01),在最佳截断值为1.96 cm下诊断的灵敏度为77.4%,特异度为60.7%;ADC值AUC为0.844(95%CI:0.808~0.915,P<0.01),在最佳截断值1.122×10^(-3)mm^(2)/s下诊断灵敏度为82.1%,特异度为71.2%。肿瘤最大径和AUC值联合诊断AUC为0.952(95%CI:0.904~0.991,P<0.01),最佳截断值下灵敏度为88.6%,特异度为81.4%。联合指标的AUC要高于肿瘤最大径(Z=3.982,P<0.05)和ADC值(Z=3.014,P<0.05)。结论:多模态MRI对乳腺癌ALNM诊断效果良好,其中肿瘤最大径和AUC值是重要的参考指标,两者联合应用能提高诊断效率。Objective:To analyze the assessment effect and reliable indicators of multimodal magnetic resonance imaging(MRI)for axillary lymph node metastasis(ALNM)of breast cancer.Methods:A total of 152 female patients with breast cancer who were diagnosed and received surgical treatment in Handan First Hospital from January 2020 to November 2021 were selected.According to the pathological results of postoperative axillary lymph node,45 cases with ALNM were selected as ALNM group,and 107 cases without ALNM were selected as non-ALNM group.Dynamic contrast enhanced-magnetic resonance imaging(DCE-MRI),T_2weighted image(T_2WI)and diffusion-weighted imaging(DWI)were used to determine breast cancer ALNM.Results:The diagnostic sensitivity,specificity,positive predictive value and negative predictive value and diagnostic consistent rate of multimodal MRI were respectively 82.22%,96.26%,90.24%,92.79%and 92.11%.Logistic regression analysis showed that the maximum tumor size and ADC value were closely correlated with lymph node metastasis.The receiver operating characteristic(ROC)curve analysis showed that the area under curve(AUC)of the maximum tumor diameter was 0.797(95%CI=0.694~0.842,P<0.01),and the diagnostic sensitivity and specificity were respectively 77.4%and 60.7%when the optimal cut-off value was 1.96cm.The AUC of ADC value was 0.844(95%CI=0.808-0.915,P<0.01),and the diagnostic sensitivity and specificity were respectively 82.1%and 71.2%when the optimal cutoff value was 1.122×10^(-3)mm^(2)/s.The AUC value of the combined diagnosis of maximum tumor diameter and AUC value was 0.952(95%CI:0.904-0.991,P<0.01),and the sensitivity and specificity were respectively 88.6%and 81.4%under the optimal cutoff value.The AUC value of the combined indicators was higher than that of the maximum tumor diameter(Z=3.982,P<0.05)and ADC value(Z=3.014,P<0.05),respectively.Conclusion:Multimodal MRI has a good diagnostic effect on breast cancer ALNM,in which the maximum tumor diameter and AUC value are important reference indicators,and the combin

关 键 词：多模态磁共振成像(MRI) 乳腺癌 腋窝淋巴结转移(ALNM) 磁共振动态增强成像(DCE-MRI) 

分 类 号：R445.2[医药卫生—影像医学与核医学]