李英　　贾海明　　白文辉　　李宗龙

[摘要] 目的 探讨乳腺癌磁共振成像的特点及临床意义。 方法 选取2019年1—12月青海红十字医院经病理诊断明确的乳腺癌患者，回顾性分析磁共振成像特点，对病灶形态学特征及血流动力学特征进行分析，进一步明确乳腺癌磁共振成像特点。 结果 87例患者共96个病灶，浸润性癌83例，原位癌13例，病灶最大径14 cm，最小径0.3 cm。肿块样强化84个，非肿块样强化12个。时间强度曲线上升型1个，平台型49个，流出型46个。早期强化79个，中晚期强化17个。ADC值>1.6×10-3 mm2/s的有1个，ADC值≤1.6×10-3 mm2/s且>1.25×10-3 mm2/s的有32个，ADC值≤1.25×10-3 mm2/s的有63个。 结论 磁共振成像可显示病灶的形态学特征和血流动力学特征，与时间-强度曲线、病灶强化时间及ADC值比较，对乳腺癌的诊断具有重要意义。

[关键词] 乳腺癌;动态增强;磁共振成像;特点

[中图分类号] R737.9;R445.2          [文献标识码] B          [文章编号] 1673-9701（2021）09-0125-04

Analysis of magnetic resonance imaging characteristics of 87 cases of breast cancer

LI Ying   JIA Haiming   BAI Wenhui   LI Zonglong

Department of Breast， Qinghai Red Cross Hospital， Xi′ning   810000， China

[Abstract] Objective To explore the characteristics and clinical significance of magnetic resonance imaging of breast cancer. Methods Breast cancer patients who were pathologically diagnosed in Qinghai Red Cross Hospital from January to December 2019 were selected. The characteristics of magnetic resonance imaging was retrospectively analyzed. The morphological and hemodynamic characteristics of the lesion were analyzed. And the characteristics of breast cancer magnetic resonance imaging was further clarified. Results There were 96 lesions in 87 patients， including 83 lesions of invasive carcinoma， 13 lesions of carcinoma in situ. The largest diameter of the lesion was 14cm， and the smallest diameter was 0.3cm. There were 84 tumor-like enhancements and 12 non-tumor-like enhancements. There was one time-intensity curve ascending type， 49 platform type， and 46 outflow type. Seventy-nine were strengthened in the early stage， and 17 were strengthened in the middle and late stages. There was one lesion of ADC value>1.6×10-3 mm2/s， 32 lesions of ADC value≤1.6×10-3 mm2/s and>1.25×10-3 mm2/s， and 63 lesions of ADC value≤1.25×10-3 mm2/s. Conclusion Magnetic resonance imaging can show the morphological and hemodynamic characteristics of the lesion. Comparing the time-intensity curve， the time of lesion enhancement and ADC value has excellent significance for the diagnosis of breast cancer.

[Key words] Breast cancer; Dynamic enhancement; Magnetic resonance imaging; Characteristics

乳腺癌是女性發病率最高的恶性肿瘤，随着生活水平的提高、生活压力的加剧以及环境气候等因素的不断变化，我国女性乳腺癌的发病率不断增加。早期诊断、早期治疗是改善乳腺癌患者预后，延长无病生存期、无复发生存期、总生存期的关键。随着技术的进步，磁共振设备不断推陈出新，应用技术越来越强大。乳腺疾病检查中磁共振扫描成像已经成为B超、X线检查的重要补充。本研究采用3.0 T超导型核磁共振扫描仪对乳腺病灶进行动态增强扫描，研究乳腺癌患者的成像特点，评价其在乳腺癌患者中的诊断价值。

1 资料与方法

1.1 一般资料

选择2019年1—12月青海红十字医院经病理诊断明确的乳腺癌患者87例，女86例，男1例，年龄32～84岁，平均43.5岁，共96个病灶。临床表现……