Studies of the correlation between dual-source CT measured thyroid iodine concentrations, contents and thyroid function
Abstract Background The aim of this study is to investigate the correlation between dual-source CT measured iodine concentration, total iodine content and blood measured thyroid parameters.Methods Dual-source CT was used to scan the neck of thyroid patients. The mean iodine concentration and thyroid tissue volume were measured to calculate the total iodine content of thyroid. Relevant test of triiodothyronine (FT3), total triiodothyronine (TT3), total thyroxine (TT4), free thyroxine (FT4), and thyroid hormone (TSH) were conducted. The correlation of thyroid mean iodine concentration and total iodine content with blood measured thyroid function was analyzed.Result The total iodine content in thyroid was positively correlated with FT3, but negatively correlated with TSH. The mean iodine concentration of thyroid was positively correlated with both FT3 and TT3.Conclusion The thyroid iodine content measured by dual-source CT can be used to determine the human iodine nutritional status and evaluate thyroid functions, which will provide help for the diagnosis and treatment of thyroid diseases.