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目的:探讨3.0T磁共振动态增强成像技术在乳腺癌诊断中的表现及诊断价值。方法:回顾性分析21例经手术病理证实的乳腺癌MRI资料,所有病例在术前均行3.0TMR平扫及动态增强扫描。结果:动态增强MRI显示23个病灶中20个病灶形态不规则或有毛刺征;MRI显示腋窝淋巴结肿大7例,内乳淋巴结肿大2例,6例病灶累及胸壁。所有病灶均不均匀强化,其中16个呈环形强化,7个见对比剂填充征;15个病灶呈Ⅲ型曲线,7个呈Ⅱ型曲线,1个呈Ⅰ型曲线。结论:边缘不光整、毛刺征及环状强化、冲刷型曲线、肿块周边异常增多的粗大扭曲血管影强烈提示乳腺癌;3.0TMRI能较清楚的显示乳腺癌及其与周围邻近组织的关系及部分淋巴结情况,有很高的临床应用价值。
Objective: To investigate the performance and diagnostic value of 3.0T magnetic resonance imaging in the diagnosis of breast cancer. Methods: MRI data of 21 cases of breast cancer confirmed by surgery and pathology were retrospectively analyzed. All patients underwent 3.0T MR plain scan and dynamic contrast-enhanced scan before operation. Results: Dynamic contrast-enhanced MRI showed 20 lesions of 23 lesions were irregular or burr; MRI showed 7 cases of axillary lymph node enlargement, 2 cases of internal mammary lymph node enlargement, and 6 lesions involving the chest wall. All lesions were heterogeneous enhancement, of which 16 were ring-shaped enhancement, 7 see the contrast agent filling sign; 15 lesions were type Ⅲ curve, 7 were type Ⅱ curve, 1 was type Ⅰ curve. CONCLUSIONS: The grossly distorted blood vessels with abnormal margins, burr signs, ring-like enhancement, flushing curve and abnormal peri-tumor margins strongly suggest breast cancer. 3.0TMRI can clearly show the relationship between breast cancer and its adjacent tissues and some Lymph nodes, there is a high clinical value.