【摘要】 目的探讨三维能量多普勒超声(3DPDUS)在诊断颈部转移性淋巴结中的应用价值。方法对116个颈部肿大淋巴结行3DPDUS检查,观察三维血流分型,计算血管血流指数(VFI),绘制ROC曲线并与病理结果对照分析。结果行3D PDUS检查并经病理证实:转移性淋巴结67个,主要表现为周边型血流(53.73%)和混合型血流(32.84%),VFI为4.781±3.000;炎性反应性增生49个,主要表现为中央型血流(73.47%)和无血流型(18.37%),VFI为1.429±1.012;上述差异均有统计学意义(P<0.05)。当选取VFI=2.652为最佳诊断界点,ROC曲线下面积(AUC)为0.907、灵敏度为79.1%、特异度为87.8%。结论三维能量多普勒血流分型和定量参数VFI对诊断颈部转移性淋巴结有较高的应用价值。更多还原

【Abstract】 Objective To investigate the application value of 3Dpower Doppler ultrasound(3DPDUS)in diagnosis of cervical lymph node metastases.Methods A total of 116 enlarged cervical lymph nodes underwent 3DPDUS and the blood flow distribution was observed.Vascular Flow Index(VFI)was measured and the receiver operating curve(ROC)was analyzed.The results were compared with the pathological findings.Results After observed on 3D PDUS,all the cervical lymph nodes were operated and the results were compared with the pathological findings.67 metastasis lymph nodes showed peripheral(53.73%)or mixed irregular(32.84%)vascular type and the VFI was(4.781±3.000).49 reaction hyperplasia lymph nodes showed regular central vascular type(73.47%)or no blood flow(18.37%)and the VFI was(1.429±1.012).The difference of all above were statistically significant(P<0.05).When the best cutoff of the evaluation of VFI was set at 2.652,the area under the curve(AUC)was 0.907,the sensitivity was 79.1%and the specificity was 87.8%.Conclusions The 3Dpower Doppler ultrasound had much higher application value in diagnosis of cervical lymph nodes metastases.更多还原