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目的探讨分化型甲状腺癌(differentiatedthyroidcarcinoma,DTC)131I治疗剂量SPECT/CT全身显像(wholebodyscan,WBS)的应用价值。方法53例DTC术后患者,行131I诊断量和治疗量WBS,比较二者病灶的变化。结果WBS发现共同病灶92例,131I治疗量WBS比诊断量WBS发现新增病灶78个,增长84.78%;53例患者中有25例发现有新增病灶,占47.17%。结论131I治疗量比诊断量WBS病灶检出率高,有较高应用价值。