多参数MRI鉴别腮腺单发Warthin瘤与多形性腺瘤的价值

Chinese Archives of Otolaryngology-Head and Neck Surgery(2020)

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Abstract
目的 探讨多参数MRI鉴别腮腺单发Warthin瘤与多形性腺瘤的价值.方法 回顾性分析病理学证实的26例腮腺单发Warthin瘤、35例多形性腺瘤的MRI资料.评估常规MRI特征、ADC值、达峰时间(Tpeak)、流出率(WR)及时间信号强度曲线(TIC)类型.结果 Warthin瘤ADC值[(0.89±0.22)×10-3 mm2/s]显著低于多形性腺瘤[(1.54±0.34) ×10-3 mm2/s] (t=-8.60, P<0.05).两者Tpeak(t=-14.74)、WR (t=8.75)及TIC类型(x2=61.00)的差异有统计学意义(P<0.05).以ADC值=1.24×10-3 mm2/s为阈值,鉴别Warthin瘤与多形性腺瘤的敏感度为82.86% (29/35),特异度为100% (26/26),准确率为90.16% (55/61).将ADC值与TIC类型进行线性拟合并绘制ROC,曲线下面积为0.996,敏感度为94.29% (33/35),特异度为100%(26/26),准确率为96.72%(59/61).结论 多参数MRI可提高鉴别腮腺单发Warthin瘤与多形性腺瘤的效能.
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