MRI动态增强扫描与扩散加权成像对乳腺癌诊断价值的对比分析

摘要

Objective To study the diagnostic value and insufficient of brest cacere in dynamic contrast-enhanced magnetic resonance imaging( MRI )scan and diffusion weighted imaging( DWI )by the SPINE matrix coil with simple bracker. Methods 37 pathological proven cases of breast cancer were examined by MRI in dynamic contrast-enhanced scanning and DWI,and the diagnostic value and deficiency were analyzed. Results In dynamic contrast-enhanced magnetic resonance imaging ,irregular shape ,spiculated margin , rim enhancement , signal intensity time curve( type Ⅱor Ⅲ )were taken as diagnostic criteria for breast cancer, the diagnostic sensitivities were 78. 4％,70. 3％ ,94. 6％ and 89. 2％ , respectively.The lesions appeared as marked hypher-intensity on DWI( b value =0 ). The higher the b value,the lower the signal intensity on DWI. Conclusion The dynamic contrast-enhanced MRI has important value in the diagnosis of breast cancer diagnosis,and DWI has important auxiliary diagnostic value.%目的 探讨简易乳腺支架配合SPINE matrix线圈MRI动态增强减影扫描及扩散加权成像(DWI)对乳腺癌的诊断价值.方法 37例经手术病理证实的乳腺癌分别采用MRI动态增强扫描、DWI,对比分析其诊断乳腺癌的价值及存在的不足.结果 MRI动态增强减影扫描以形状不规则、毛刺征、环形强化和Ⅱ型或Ⅲ型曲线作为诊断乳腺癌标准,其敏感度分别为78.4%、70.3%、94.6%和89.2%.DWI中b=0时病灶呈明显高信号,随b值增加病灶信号强度依次降低.结论 MRI动态增强扫描对乳腺癌具有特征性的诊断价值;DWI具有重要辅助性的诊断价值.