磁共振动态增强扫描在乳腺环形强化病灶的应用

目的评估MRI动态增强在乳腺环形强化病灶的诊断价值。方法回顾性分析21例乳腺患者MRI环形强化病例,所有病例均经病理证实。患者均行3D快速梯度回波序列动态增强扫并描绘制时间-信号强度曲线。结果 21例乳腺环形强化病变中,恶性病灶16例,良性病灶5例,病灶增强形态特征及时间一信号强度时间曲线在良恶性乳腺病变中差异均有统计学意差异(P0.05)。结论动态增强MRI可以作为鉴别诊断乳腺环形强化病灶的良恶性有效手段。

Application of dynamic contrast-enhanced MR imaging for breast lesions

Objective To evaluate the value of the dynamic contrast-enhanced MR imaging of breast lesions. Methods 21 cases with breast lesions which had undergone＇ enhanced MRI of three dimensional dynamic gradient echo sequence and time signal intensity curve were reviewed retrospectively. were confirmed by the pathology. Results There were 16 cases with malignant lesions and 5 case with benign lesions. Signific.anl difference existed in the morphological features ,early enhanced rate and time-signal intensity curve pattern between malignant and benign lesion （ P 〈 0.05 ）. Conclusion Ring-enhancement of breast lesions at MR imaging is a strong in- dicator of malignancy. Benign and malignant breast tumors can be differentiated according to the morphology characteristic and enhance- ment pattern