常规超声分型和超声造影在乳腺非肿块型病变中的应用价值

目的 探讨常规超声分型和超声造影（CEUS）在乳腺非肿块型病变（NMLs）中的应用价值。方法 选择天津市第五中心医院经病理证实为乳腺NMLs病变的患者50例（50个病灶），分析NMLs常规超声分型与BI-RADS分类对应关系，并对乳腺NMLs进行超声造影，比较联合BI-RADS及CEUS对其的诊断价值。结果 NMLs常规超声分型Ⅰa和Ⅱa病变对应BI-RADS分级为4a级，Ⅲ和Ⅳ型病变对应BI-RADS分级为4b级，Ⅰb和Ⅱb型病变对应BI-RADS分级为4c级。良恶性病变在增强后病变范围有无扩大和是否存在“蟹足征”方面差异有统计学意义（P<0.05）。Pearson相关分析显示增强后病变范围扩大、出现“蟹足征”、峰值强度和曲线下面积与恶性乳腺NMLs相关。CEUS联合BI-RADS分级的诊断价值高于常规超声BI-RADS分级。结论 NMLs常规超声分型Ⅰa和Ⅱa病变恶性风险最低，Ⅰb和Ⅱb型病变恶性风险最高。增强后病变范围扩大与出现“蟹足征”现象有助于快速鉴别NMLs良恶性病变。

Application Value of Conventional Ultrasound Classification and Contrast-Enhanced Ultrasound in Non-Mass Breast-Like Lesions

Objective To investigate the application value of conventional ultrasound typing and contrastenhanced ultrasound (CEUS) in non-mass breast like lesions (NMLs). Methods A total of 50 patients (50 lesions) who were pathologically confirmed to have breast NMLs in Tianjin Fifth Central Hospital. The corresponding relationship between conventional ultrasound typing of NMLs and BI-RADS classification was analyzed, and CEUS was performed on breast NMLs to compare the diagnostic value of combined BIRADS and CEUS. Results The NMLs conventional ultrasound classified Ⅰa and Ⅱa lesions corresponded to BI-RADS classification 4a; Ⅲ and Ⅳ lesions corresponded to BI-RADS classification 4b; Ⅰb and Ⅱ b lesions corresponded to BI-RADS classification 4c. A statistically significant correlation was observed between the expansion of lesion range and the presence of “crab foot sign” in benign and malignant lesions after the enhancement (P<0.05). Pearson correlation analysis showed that enlarged lesion area, “crab foot sign,” peak intensity, and area under the curve were associated with malignant breast NMLs. The diagnostic value of CEUS combined with BI-RADS was higher than that of conventional ultrasound BI-RADS. Conclusion NMLs conventional ultrasonographic classificationsⅠa andⅡa have the lowest malignant risk, whereas classifications Ⅰb and Ⅱb have the highest value. The expansion of lesion range and the presence of “crab foot sign” after enhancement are helpful for rapid differentiation of benign and malignant NMLs.