Purpose: it is to inquire into the diagnostic value of the visual index of thyroid uptake (VITU) to sub acute thyroiditis.

目的：探讨甲状腺直观指数(VITU)对亚急性甲状腺炎的诊断价值。

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Objective To study the value of dual-phase ~(18)F -FDG PET imaging, standardized uptake value(SUV) and retention index(RI%) in the diagnosis of malignancy.

目的探讨双时相~（18）F-FDG PET显像图像、标准摄取值（SUV）及储留指数（RI%）在恶性肿瘤诊断中的价值。

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Conclusions: it is a special diagnostic index of early subacute thyroiditis that T3, T4 are higher and 131i uptake rate is lower to assume a separate phenomenon.

结论：血清t3和T4值升高而甲状腺吸131i率降低呈分离现象是亚甲炎诊断的特异性指标。

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