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自主功能性甲状腺结节(AFTN)病人用碘或锝作甲状腺显像时,通常仅结节显像,其余甲状腺组织的功能受抑制而不能摄取放射性.为了使AFTN的诊断更有把握,排除一侧甲状腺缺如的可能,通常需作TSH刺激试验,但注射TSH易有异种蛋白过敏和甲状腺激素释放过多等副反应出现.作者根据心肌灌注显像剂~(201)Tl-氯化铊能使功能受抑制的甲状腺显像的原则,给14例女性AFTN病人静脉注射148～185MBq~(99m)Tc-TBI,40分钟和4小时后做两次甲状腺显像,结果有13例见功能受抑制的对侧甲状腺也能摄取~(99m)Tc-TBI而显像.作者指出,TSH的调节对甲状腺组织摄取~(99m)Tc
In patients with autonomic functional thyroid nodules (AFTNs), thyroid imaging with iodine or technetium usually only nodules, and the rest of the thyroid tissue is inhibited from taking up radioactivity. In order to make the diagnosis of AFTN more certain, Side thyroid absence may be required for TSH stimulation test, but TSH susceptible to foreign protein allergy and thyroid hormone release side effects such as excessive occurrence of the author according to myocardial perfusion imaging agent - (201) Tl-thallium chloride Thirteen women with AFTN underwent intravenous injection of 148 ~ 185MBq ~ (99m) Tc-TBI on the principle of thyroid imaging with suppressed function. Thyroid imaging was performed 40 and 4 hours after the thyroid imaging. Results showed 13 patients Inhibition of the contralateral thyroid can also take ~ (99m) Tc-TBI and imaging. The authors point out that TSH regulation of thyroid tissue uptake ~ (99m) Tc