彩色多普勒超声对颈部淋巴结良恶性肿瘤的鉴别诊断价值研究

Clinical Value of Color Doppler Ultrasonography in the Differential Diagnosis of Benign and Malignant Tumor of Cervical Lymph Nodes

目的探讨彩色多普勒超声(简称彩超)对颈部淋巴结良恶性肿瘤的鉴别诊断价值。方法选择2015年4月~2016年10月期间在本院彩超室进行检查的50例颈部淋巴结肿大患者作为研究对象,分为恶性组(25例)与良性组(25例)。比较两组超声影像学资料。结果两组Vmax相比,差异无统计学意义(P>0.05);良性组淋巴结纵横比高于恶性组、阻力指数低于恶性组,差异有统计学意义(P<0.05);与恶性组相比,良性组肿瘤边界显示清楚,差异有统计学意义(P<0.05);良性组血流信号以淋巴门型为主,恶性组血流信号以边缘型为主。结论超声影像中不同血流分型是鉴别颈部淋巴结良恶性肿瘤的重要特征,阻力指数与纵横比可作为鉴别的指标。

To evaluate the diagnostic value of color Doppler ultrasonography in the differential diagnosis of benign and malignant tumor of cervical lymph nodes.Methods:Totally,50 patients with cervical lymphadenopathy were performed color Doppler ultrasonography in our hospital from April 2015 to October 2016.They were divided into malignant group(n=25)and benign group(n=25).The ultrasonic imaging was compared between the two groups.Results:(1)There was no significant difference in the Vmax between the two groups(P>0.05).(2)The L/T ratio in benign group was significantly higher than that in malignant group.However,the resistance index in benign group was significantly lower than that in malignant group(P<0.05).(3)Tumors showed clear boundary significantly in benign group,with significant difference(P<0.05).(4)Hilum of lymph node was mainly type of the blood flow signals in benign group,while borderline was mainly type in malignant group.Conclusions:The different blood flow signals are the important characteristics in the differential diagnosis of benign and malignant tumor of cervical lymph nodes by color Doppler ultrasonography,meanwhile,the L/T ratio and resistance index can be used as index for identification.