MRI多模态成像对乳腺超声BI-RADS 4类病变的研究价值

The Value of Multi-model MRI in Ultrasonography BI-RADS Category 4 Breast Lesions

目的探讨MRI多模态成像对乳腺超声BI-RADS 4类病变的诊断价值。方法回顾性分析117例经病理证实的乳腺超声BI-RADS 4类病变的MRI影像学特征,计算联合病灶边缘、强化分布特征、TIC曲线、AVS、ADC值(方法A)及以TIC曲线为主,其他征象为辅(方法B)对乳腺良恶性病变诊断的敏感度、特异度、准确率。结果117例病灶MRI共检出115例病灶,其中恶性61例,良性54例,方法A诊断乳腺良恶性病变的敏感度88.5%,特异度85.2%,准确率87.0%;方法B诊断乳腺良恶性病变的敏感度93.4%,特异度90.7%,准确率92.2%。结论以TIC曲线为主,其他征象为辅诊断乳腺病变的敏感度、特异度、准确率高于几种征象联合诊断,具有良好的诊断效能。

Objective To explore the diagnostic value of Multi-model MRI in Ultrasonography bI-RADS Category 4 breast Lesions.Methods Edge shape,enhanced characteristics,tIC,AVS and ADC were jointly analyzed in the 117 Ultrasonography bI-RADS Category 4 breast Lesions.Results there were 115 lesions finding in 117 lesions,Pathologic diagnoses revealed 61 malignant lesions and 54 benign ones.the sensitivity,specificity and coincidence rate were 88.5%,85.2%,87.0%and 93.4%,90.7%,92.2%respectively by different joint methods.Conclusion tIC predominates and supplemented by other signs can improve the capability of diagnosing breast deseases.