乳腺浸润性导管癌的MRI诊断价值

目的探讨磁共振成像(MRI)对乳腺浸润性导管癌的临床应用价值。方法回顾性分析了2012年1月至2012年6月期间在四川大学华西医院放射科行MRI检查,且术后经病理学检查证实为乳腺浸润性导管癌的75例患者的术前MRI检查资料。结果形态学分型:团块型54例,结节型21例,囊实混合型0例。肿块形状:圆形3例,卵圆形9例,不规则形63例。边缘:不规则66例,规则9例;呈微小分叶状56例。肿块内有钙化者1例。有淋巴结转移者18例。MRI的T1WI呈低信号(65例)或等信号(10例),T2WI呈低信号(3例)或以稍高信号为主的混杂信号(72例),增强后大部分呈均匀强化(64例),部分呈不均匀强化(11例)。结论通过分析乳腺浸润性导管癌的MRI成像特征,可为临床诊断乳腺浸润性导管癌提供有力的影像学证据。

The Value of Magnetic Resonance Imaging for Breast Invasive Ductal Carcinoma

Objective To investigate the value of MRI on the preoperative diagnosis for breast invasive ductal carcinoma combined with histopathology.Methods Seventy-five patients with breast invasive ductal carcinoma confirmed with surgery and pathology were reviewed,which were treated in our hospital from Jan to Jun in 2012.The data of MRI before operation were retrospectively analyzed.Results The morphological classification of lesions was mass in 54 cases,micronodular in 21 cases,and cystoid solid in 0 case,respectively.The shape of neoplasm was circular in 3 cases,ovoid in 9 cases,and irregular in 63 cases,respectively.The edge of lesions was irregular in 66 cases,regular in 9 cases,and slightest lobulated in 56 cases,respectively.There was 1 case within the tumor calcification and lymph node metastasis in 18 cases.The MRI features of the T1WI were low signal intensity in 65 cases,signal intensity similar in 10 cases,and the T2WI were low signal intensity in 3 cases and mixed slightly high signals in 72 cases.After enhancement,the tumor had homogeneous enhancement in 64 cases,heterogeneous enhancement in 11 cases.Conclusion The analysis of MRI characteristic features of invasive ductal carcinoma can provid strong evidence of imaging for clinical diagnosis of breast invasive ductal carcinoma.