乳腺癌的MRI诊断  

MR Imaging Diagnosis of Breast Carcinoma

作　　者：朱嘉英[1] 李顶夫[1] 雷益[1] 邱德正[1] 陈志刚[1] 

机构地区：[1]深圳市红十字会医院放射科,广东深圳518035

出　　处：《实用放射学杂志》2001年第7期490-493,共4页Journal of Practical Radiology

摘　　要：目的　探讨乳腺癌的MRI表现及诊断价值。方法　回顾性分析 12例经手术与病理证实的乳腺癌MRI表现 ,并与其X线表现进行比较。结果　 12例乳腺MRI共发现 2 1个病变 ,X线检查发现 17个病变。MRI增强扫描显示致密乳腺组织中的病变优于X线检查 ,能清楚地显示深部乳腺癌对胸大肌的浸润和胸骨旁淋巴结的转移 ,X线检查对此却难于估价。“边缘强化征”对乳腺癌的诊断有一定价值。结论　MRI增强扫描的敏感性和准确性优于X线检查 ,它有助于乳腺癌的早期发现、乳腺癌病人的肿瘤分期和治疗方案的制定。Objective To study and evaluate the MRI findings and their diagnostic value for breast carcinoma.Methods Preoperative contrast-enhanced MR imaging and mammography were performed in 12 patients who underwent surgery and were histopathologically proved with breast carcinoma.MR imaging findings were compared with clearly mammography.Results Twenty-one breast lesions in 12 cases were detected with MR imaging.Seventeen of the twenty-one lesions were detected with mammography.Contrast-enhanced MR imaging was superior to mammography to demonstrate lesions in these dense breasts.It could clearly indicate the extension of posterior breast carcinoma into the pectoralis major muscle and the metastases of parasternal lymphatic node,while it was difficult to evaluate with mammography.The 'rim enhancement sign' might be valuable to diagnose breast carcinoma.Conclusion The sensitivity and accuracy of MR imaging is superior to that of mammography.Contrast-enhanced imaging of the breast is helpful not only in early diagnosis of breast carcinoma but also in staging breast carcinoma and planning therapy.

关 键 词：乳腺肿瘤 磁共振成像 对比增强 MRI诊断 

分 类 号：R737.9[医药卫生—肿瘤] R445.2[医药卫生—临床医学]