【关键词】分化型甲状腺癌;颈部淋巴结转移；甲状腺球蛋白;SPECT/CT显像；超声 中图分类号：R736.1 文献标志码：A DOI： 10.3969/j .issn.1003-1383.2025.07.006

    【Abstract】 Objective To investigate and compare the diagnostic value of ¹³¹ I-SPECT/CT imaging and ultrasound combined withserumthyroglobulin(Tg)inthediagnosisofcervicallymphnodemetastasisafterdiferentiatedthyroidcarcinoma(DTC) surgery.MethodsA total of 38O DTC patients who underwent surgery and ¹³¹I therapy in a hospital from August 2017 to December 2022 were retrospectivelyincluded.Allcases wereconfirmed forcervical lymph node metastasis status bysurgical pathology.Using pathologicalresultsasthegoldstandard，thesensitivity，specificity，acuracy，andotherindicesofSPEC/ CTandultrasonography—eachcombined withserum Tg—fordetecting postoperativecervical lymph-nodemetastasis inDTC wereanalyzed.Thediagnosticeficacyof diferentmethodswascomparedbychi-squaretest.ResultsThediagnosticsensitivity ......