目的探究超声内镜(EUS)联合 PET-CT检查对食管癌术前T、N分期诊断 的临床价值。方法 回顾性分析我院2016 年7月至2018年2月间收治的72例食管癌 患者的影像学资料，所有患者术前均行 EUS及PET-CT检查，术后经病理确诊， 以手术病理结果为金标准，分析EUS、 PET-CT及两者联合诊断食管癌T、N分期 的诊断效能。结果 EUS诊断食管癌T、N 分期的总体正确率为75.00%、80.56%； PET-CT诊断食管癌T、N分期的总体正确 率为79.16 %、88.88%；两者联合诊断食 管癌T、N分期的总体正确率为95.83 %、 98.61%，诊断准确性大于单一EUS及PETCT诊断，差异具统计学意义(P<0.05)。 结论 EUS联合PET-CT检查对食管癌术前 T、N分期诊断准确性较好，诊断效能优 于单一EUS及PET-CT检查。

Objective To investigate the clinical value of endoscopic ultrasonography (EUS) combined with PET-CT in the diagnosis of preoperative T stage and N stage of esophageal cancer. Methods The imaging data of 72 patients with esophageal cancer who admitted to the hospital during the period from July 2016 to February 2018 were analyzed retrospectively. All patients underwent EUS and PET-CT before surgery, and pathological diagnosis was performed after surgery. With surgical and pathological results as the golden standard, and the diagnostic efficiency of EUS, PET-CT and both in the diagnosis of T stage and N stage of esophageal cancer were analyzed. Results The overall accuracy rates of EUS in the diagnosis of T stage and N stage of esophageal cancer were 75.00% and 80.56% while those of PET-CT were 79.16% and 88.88%. The overall accuracy rates of combined diagnosis for T stage and N stage of esophageal cancer were 95.83 % and 98.61%. The diagnostic accuracy was higher than that of EUS or PET-CT alone (P<0.05). Conclusion The diagnostic accuracy of EUS combined with PET-CT is good for preoperative T stage and N stage of esophageal cancer. The diagnostic efficiency is better than EUS or PET-CT alone.