MRI对乳腺成簇环状非肿块强化良恶性病变的鉴别诊断价值  

The differential diagnosis value of MRI in of breast benign and malignant lesions with clustered annular non-mass enhancement

作　　者：李娜 罗娅红 于韬 LI Na;LUO Ya-hong;YU Tao(Department of Medical Imaging,Cancer Hospital ofChina Medical University,Liaoning Cancer Hospital&Institute,Shenyang110042,China)

机构地区：[1]中国医科大学肿瘤医院辽宁省肿瘤医院医学影像科

出　　处：《放射学实践》2019年第11期1242-1245,共4页Radiologic Practice

基　　金：国家重点研发计划-重大慢性非传染性疾病防控研究-基于分子影像和影像组学的乳腺癌早诊、疗效评价与预后预测新技术研发(2017YFC1309100)

摘　　要：目的:探讨MRI对乳腺成簇环状非肿块强化病变的良恶性鉴别诊断的价值。方法:回顾性分析经手术病理证实的成簇环状非肿块强化病变患者102例,良性34例,恶性68例。观察比较两组病变的MRI特征。结果:良性组平均年龄38.94岁,低于恶性组(51.37岁)。良性组病变以区域(44.4%)及多区域性(27.8%)分布居多,恶性组以段样(47.1%)及区域性(27.9%)分布居多。DWI图像良性组以高或稍高信号(54.3%)、中心高信号(31.4%)居多;恶性组以高或稍高信号(48.4%)、边缘高信号(48.4%)居多。良性组平均ADC值(1.12±0.25)×10-3 mm 2/s高于恶性组(1.00±0.24)×10-3 mm 2/s。良恶性成簇环状强化病变在年龄、分布、DWI信号、ADC值几方面差异均具有统计学意义(P<0.05)。结论:MRI多种成像序列相结合对良恶性成簇环状强化病变术前鉴别诊断具有重要价值。Objective:To evaluate the differential diagnosis value of breast benign and malignant lesions with clustered annular non-mass enhancement.Methods:Retrospectively analysis was conducted to compare the MRI features of 102 cases confirmed by surgical pathology:34 cases of benign and 68 cases of malignant lesions.Results:The average age in the benign group(mean=38.94 years old)was lower than that in the malignant group(mean=51.37 years old).Regional(44.4%)and multiple regional(27.8%)distributed lesions were more common in benign group.The majority of malignant groups were segmental(47.1%)and regional(27.9%)distributed.DWI images showed that high or slightly high signal intensity(54.3%)and central high signal intensity(31.4%)was common in benign group;while high or slightly high signal intensity(48.4%)and edge high signal intensity(48.4%)were more common in malignant group.The average ADC value in benign group was(1.12±0.25)×10-3 mm 2/s,which was higher than that in malignant group(1.00±0.24)×10-3 mm 2/s.There were statistically significant differences in age,distribution,DWI signal and ADC value between benign and malignant clustered annular enhanced lesions(P<0.05).Conclusion:The combination of multiple MRI imaging sequences is of great value in the preoperative differential diagnosis of breast benign and malignant lesions with clustered annular enhancement.

关 键 词：乳腺肿瘤 成簇环状强化 非肿块强化 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R737.9[医药卫生—诊断学]