Research progress of different imaging methods in predicting the efficacy of ¹³¹I ablation treatment in postoperative patients with differentiated thyroid carcinoma

Differentiated thyroid cancer（DTC） is one of the most common malignant tumors in the head and neck region. The efficacy of ablation treatment is affected by the size of residual thyroid tissue and its iodine uptake function. Different imaging examination methods have their own advantages and disadvantages in evaluating residual thyroid size and iodine uptake function, and have different predictive values for the efficacy of ablation treatment.Some studies have found that combining SPECT/CT with quantitative analysis results can effectively predict the efficacy of ablation treatment. This article explores the evaluation of residual thyroid tissue size and iodine uptake function after DTC surgery using different imaging methods, as well as the predictive value of iodine-131（¹³¹I） therapy for the efficacy of ablation treatment, in order to provide more effective diagnostic and therapeutic basis for clinical workers.