动态增强MRI结合DWI对乳腺疾病BI-RADS分类诊断的价值

发布时间：2018-04-09 05:08

本文选题：乳腺　切入点：时间-信号强度曲线　出处：《广东医学》2016年02期

【摘要】：目的探讨动态增强MRI结合DWI在乳腺疾病BI-RADS分类诊断中的应用价值。方法回顾性分析215例经手术或穿刺病理证实的乳腺疾病患者的MRI资料,均行动态增强扫描及DWI(b=1 000 s/mm2),其中良性46例,恶性169例。分析病灶时间-信号强度曲线、ADC值及两者结合的MRI BI-RADS分类诊断乳腺病变的灵敏度、特异度及诊断符合率。结果 ROC曲线确定的ADC诊断阈值为1.177×10-3mm2/s,时间-信号强度曲线、ADC值及两者结合的MRI BI-RADS分类诊断乳腺癌的灵敏度分别为94.7%、89.3%、97.0%,特异度分别为39.1%、87.0%、80.4%,诊断符合率分别为82.8%、88.8%、93.5%。结论结合时间-信号强度曲线及ADC值,MRI BI-RADS分类能显著提高乳腺疾病的诊断水平。
[Abstract]:Objective to evaluate the value of dynamic enhanced MRI combined with DWI in the diagnosis of breast diseases by BI-RADS classification.Methods MRI data of 215 patients with breast diseases confirmed by operation or puncture pathology were retrospectively analyzed. Dynamic contrast enhanced scan and DWI(b=1 000 s / m 2 were performed in all patients, including 46 cases of benign and 169 cases of malignant.The sensitivity, specificity and diagnostic coincidence rate of MRI BI-RADS combined with time-signal intensity curve for diagnosis of breast lesions were analyzed.Results the diagnostic threshold of ADC determined by ROC curve was 1.177 脳 10 ~ (-3) mm ~ (-2) / s, and the sensitivity of time-signal intensity curve and MRI BI-RADS combined with MRI BI-RADS in the diagnosis of breast cancer were 94.77-89.3 and 97.0, respectively. The specificity was 87.0 ~ 80.4 and the diagnostic coincidence rate was 82.888.88.89.593.593.593.Conclusion combining time-signal intensity curve and ADC BI-RADS classification can significantly improve the diagnostic level of breast diseases.
【作者单位】：广西医科大学附属肿瘤医院放射科;广西医科大学第一附属医院放射科;
【基金】：广西科学研究与技术开发计划项目(编号:桂科攻14124004-1-11)
【分类号】：R445.2;R737.9

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