CT结合高频超声对甲状腺乳头状癌颈部淋巴结转移的诊断价值

Diagnostic Value of CT Combined with High Frequency Ultrasound in Cervical Lymph Node Metastasis of Papillary Thyroid Carcinoma

目的探讨CT结合高频超声对甲状腺乳头状癌(PTC)颈部淋巴结转移的诊断价值。方法收集2017年1月至2018年6月北京市朝阳区桓兴肿瘤医院诊治的50例PTC疑似颈部淋巴结转移患者,均行CT、高频超声检查,比较分析CT与高频超声影像学相关资料、表现,并与手术病理结果进行比较。结果以病理诊断为金标准,CT结合高频超声诊断颈部淋巴结转移的灵敏度、特异度及准确度均明显高于CT、高频超声单独诊断。经病理诊断,50例患者有47例发生颈部淋巴结转移,转移率为94.00%;CT联合高频超声诊断的符合率显著高于CT、高频超声单独诊断[95.74%(45/47)比74.47%(35/47),76.60%(36/47)](P<0.05)。结论CT结合高频超声在PTC颈部淋巴结转移诊断中有较高的灵敏度、特异度及准确度,且较CT、高频超声单独诊断更加准确全面。

Objective To investigate the diagnostic value of CT combined with high frequency ultrasound in cervical lymph node metastasis of papillary thyroid carcinoma(PTC).Methods A total of 50 patients with suspected cervical lymph node metastasis who were diagnosed and treated in Beijing Chaoyang District Huanxing Cancer Hospital from Jan.2017 to Jun.2018 were included in the study.The data and manifestations of CT and high frequency ultrasound were analyzed,and compared with the results of surgical pathology.Results With pathological diagnosis as the gold standard,the sensitivity,specificity and accuracy of CT and high frequency ultrasound combined diagnosis were significantly higher than that of CT and high frequency ultrasound alone.According to pathological diagnosis,47 cases of cervical lymph node metastasis occurred in 50 patients,the metastasis rate was 94.00%;and the coincidence rate of CT combined with high frequency ultrasound diagnosis was significantly higher than that of CT and high frequency ultrasound alone[95.74%(45/47)vs 74.47%(35/47),76.60%(36/47)](P<0.05).Conclusion CT combined with high frequency ultrasound has higher sensitivity,specificity and accuracy in the diagnosis of PTC cervical lymph node metastasis,and it is more accurate and comprehensive than CT or high frequency ultrasound alone.