乳腺疾病的动态增强MRI研究

目的　评价动态增强MRI对乳腺良、恶性病变的诊断价值。方法　对 63例临床疑为乳腺疾病的患者进行前瞻性常规MRI平扫和动态增强MRI扫描。分析比较良、恶性病变的形态学及强化特征 ,根据MRI表现鉴别良、恶性疾病 ,并与X线及病理结果比较。结果　 63例患者共计 78个病灶 ,恶性 33个 ,良性 45个。动态增强MRI根据病变的形态学和强化特征诊断乳腺良、恶性病变的准确率为 92 %。结论　动态增强MRI能清晰显示乳腺病变并作出定性诊断 ,因而是评价乳腺疾病的一种有效的影像学方法。

Breast Radiology Dynamic Contrast-enhanced MRI of Breast Lesions

Objective To evaluate the value of dynamic Gd-DTPA-enhanced magnetic resonance imaging (MRI)in the diagnosis of benign and malignant breast lesion.Methods Sixty-three patients with breast disease underwent MR imaging.Both conventional MRI and 3D dynamic contrast-enhanced MRI were performed in all patients.Some morphological and enhanced characteristics of benign and malignant lesions after administration of Gd-DTPA were analysed,and the value of MRI was disussed.The results of MRI were also correlated with mammography and pathologic results.Results 78 lesions were evaluated,histologic examination showed 33 lesions were malignant and 45 were benign.According to the morphological features and enhanced characteristics,dynamic MRI had a accuracy of 92% in differentiating benign from malignant lesions.Conclusion Dynamic contrast-enhanced MRI can show breast lesions clearly and classify benign and malignant diseases accurately.It is an effective medical imaging method for evaluating breast lesions.