乳腺浸润性导管癌的MRI特征与腋窝淋巴结转移的相关性

Correlation between MRI Features of Invasive Ductal Carcinoma of Breast and Axillary Lymph Node Metastasis

目的 为了评估乳腺浸润性导管癌患者的MRI特征与腋窝淋巴结转移的相关性。方法 对比30名不伴腋窝淋巴结转移与22名伴腋窝淋巴结转移的乳腺浸润性导管癌患者MRI形态学特点、早期强化率及ADC值,探讨浸润性导管癌患者的MRI表现与腋窝淋巴结转移的相关性。结果 研究表明患者的年龄、病灶的形态、边缘、信号是否均匀、病灶内部强化是否均匀、曲线类型的P值>0.05,无统计学意义,而原发病灶的大小、早期强化率、ADC值的P值<0.05,与腋窝淋巴结转移存在相关性。结论 伴腋窝淋巴结转移患者的肿瘤原发病灶大小较不伴腋窝淋巴结转移患者体积大、早期强化率高、ADC值低,因此乳腺浸润性导管癌的原发灶大小、早期强化率、ADC值对预测腋窝淋巴结是否转移有一定价值。

Objective To evaluate the correlation between MRI features and axillary lymph node metastasis in patients with invasive ductal carcinoma. Methods The MRI features,early enhancement rate and apparent diffusion coefficient values of 30 patients without axillary lymph node metastasis and 22 patients with axillary lymph node metastasis were compared to investigate the correlation between MRI features of patients with invasive ductal carcinoma and axillary lymph node metastasis. Results The study showed that there was no statistical significance in patients’ age,lesion shape,edge,signal uniformity,lesion internal enhancement uniformity,curve type,P value>0.05,while the lesion size,early enhancement rate and ADC value and axillary lymph node metastasis,P value<0.05, were correlated with axillary lymph node metastasis. Conclusion The primary tumor of patients with axillary lymph node metastasis had larger volume,higher rate of early enhancement,and lower ADC value than that of patients without axillary lymph node metastasis. Therefore,the primary tumor size,early enhancement rate and ADC value of breast invasive ductal carcinoma have certain value in predicting axillary lymph node metastasis.