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江苏省苏北人民医院医学影像科,江苏 扬州 225001
孙继全,E-mail:sjq_1984@163.com
收稿:2026-03-04,
纸质出版:2026-10-25
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周鑫,陈波,孙继全.多参数MRI在乳腺浸润性小叶癌术前分期中的应用价值[J].局解手术学杂志,2026,35(10):849-853.
ZHOU Xin,CHEN Bo,SUN Ji-quan.Application value of multi-parametric MRI in preoperative staging of invasive lobular carcinoma of the breast[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(10):849-853.
周鑫,陈波,孙继全.多参数MRI在乳腺浸润性小叶癌术前分期中的应用价值[J].局解手术学杂志,2026,35(10):849-853. DOI: 10.11659/jjssx.03E026017.
ZHOU Xin,CHEN Bo,SUN Ji-quan.Application value of multi-parametric MRI in preoperative staging of invasive lobular carcinoma of the breast[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2026,35(10):849-853. DOI: 10.11659/jjssx.03E026017.
目的
2
探讨多参数MRI在乳腺浸润性小叶癌(ILC)术前分期中的临床应用价值。
方法
2
回顾性分析2017年1月至2024年10月于我院诊疗并经病理证实为ILC的206例患者的影像资料和病理资料,所有患者术前均行动态对比增强MRI(DCE-MRI)及扩散加权成像(DWI)等多参数MRI检查。以病理结果为金标准,依据乳腺ILC的TNM分期标准评价:T分期中肿瘤最大径测量准确性和多灶性病变检出;N分期中表观扩散系数(ADC)值预测腋窝淋巴结转移风险;M分期中对侧乳腺癌的检出。采用受试者工作特征(ROC)曲线评估多参数MRI的诊断效能。
结果
2
T分期中MRI测量肿瘤最大径误差仅(1.5±1.2) mm(ICC=0.92),显著优于超声测量误差(3.8±2.1) mm(
P
<
0.001);MRI对多灶性病变检出敏感度为86.0%(95%
CI
: 79.0%~93.0%)。N分期中ADC值≤1.10×10
-3
mm²/s预测淋巴结转移的敏感度为92.9%、特异度为88.6%(AUC=0.89
OR
=4.2
P
=0.003)。M分期中对侧乳腺癌检出敏感度为96.0%(95%
CI
: 92.0%~100%),阴性预测值为99.5%。MRI与病理TNM分期总体一致性高(加权Kappa=0.85)。
结论
2
多参数MRI通过整合形态学与功能学参数,精准评估ILC的TNM分期,为手术规划及新辅助治疗提供关键依据。
Objective
2
To investigate the clinical application value of multi-parametric MRI in preoperative staging of invasive lobular carcinoma (ILC) of the breast.
Methods
2
The imaging and pathological data of 206 patients with pathologically confirmed ILC who were treated at our hospital from January 2017 to October 2024 were retrospectively analyzed. All patients underwent preoperative multi-parametric MRI, including dynamic contrast‑enhanced MRI (DCE‑MRI) and diffusion‑weighted imaging (DWI). Taking pathological results as the gold standard, evaluations were performed according to the TNM staging criteria for ILC of the breast: the accuracy of maximum tumor diameter measurement and the detection of multifocal lesions in T staging; the value of the apparent diffusion coefficient (ADC) in predicting the risk of axillary lymph node metastasis in N staging; the detection of contralateral breast cancer in M staging. Receiver operating characteristic (ROC) curve was adopted to evaluate the diagnostic performance of multi-parametric MRI.
Results
2
In T staging,the error of the maximumtumor diameter measured by MRI was only (1.5±1.2) mm (ICC=0.92),which was significantly better than that measured by ultrasound (3.8±2.1) mm(
P
<
0.001). The sensitivity of MRI for detecting multifocal lesions was 86.0%(95%
CI
:79.0% to 93.0%). In N staging,the sensitivity of ADC value ≤1.10×10⁻³ mm²/s in predicting lymph node metastasis was 92.9%,and the specificity was 88.6% (AUC=0.89,
OR
=4.2,
P
=0.003). In M staging,the sensitivity for detecting contralateral breast cancer was 96.0%(95%
CI
:92.0% to 100%),and the negative predictive value was 99.5%. The overall consistency between MRI and pathological TNM staging was high (weighted Kappa=0.85).
Conclusion
2
Multi-parametric MRI can accurately evaluate the TNM stage of ILC by integrating morphological and functional parameters,providing a key basis for surgical planning and neoadjuvant therapy.
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