甲状腺显像及摄锝指数在亚急性甲状腺炎诊断中的应用

Clinical application of ^(99)m Tc-pertechnetate thyroid imaging and ^(99)m Tc uptake rate determination in diagnosis of subacute thyroiditis

目的探讨甲状腺显像及摄锝指数在早期亚急性甲状腺炎中的应用价值。方法32例亚急性甲状腺炎患者作甲状腺显像时,同时测定甲状腺摄锝指数,并与甲状腺摄131I率测定比较。结果亚急性甲状腺炎患者摄锝指数和摄131I率明显降低,甲状腺显像图像不清,放射性分布不均匀或呈局部稀疏、缺损表现。结论核医学检查对早期亚急性甲状腺炎有诊断价值,摄锝指数是诊断早期亚急性甲状腺炎的灵敏指标,甲状腺显像能反映甲状腺组织受累范围和程度。

Objective To investigate the clinical value of quantitative ^99m Te - pertechnetate thyroid imaging and ^99m Tc uptake rate determination for the diagnosis and therapeutic evaluation in patients with subacute thyroiditis. Methods^99m TC - pertechnetate thyroid imaging was performed on 32 patients with subacute thyroiditis and 20 controls. ^99m Te uptake rate and ^131Ⅰ uptake rate were calculated. Results Focal damages and diffuse uptake decrease were found in patients with subacute thyroiditis. ^99m Te uptake rate was increased in patients （0.15 ±0.06） ,being significantly higher than that in controls （ P 〈 0. 01 ）. Conclusion ~m Tc thyroid imaging and uptaket rate determination can accurately reveal the size, shape and condition of radioactivity distribution of the gland. Quantitative ^99m Tc - pertechnetate thyroid imaging is a significantly helpful technique in the diagnosis and treatment for subacute thyroiditis.