核医学显像(SPECT/CT)鉴别头颈部可疑异位甲状腺的价值

摘要

目的 研究SPECT/CT对头颈部可疑异位甲状腺(ETG)的诊断及鉴别诊断价值.资料与方法 对34例可疑异位甲状腺行平面显像,使用99mTcO4-作为显像剂,4例加做131I扫描,19例可疑或需定位的患者行SPECT/CT断层显像,以此判断头颈部正常甲状腺位置外占位的性质.结果 34例患者中共有10例异位甲状腺被准确诊断,4例误诊或未被明确诊断,20例其他病种被排除异位甲状腺的可能,总体准确率为88.24%.结论 核医学显像(SPECT/CT)对鉴别头颈部有功能的异位甲状腺具有很高的价值.缺点在于无法发现无功能或功能较低的甲状腺组织,需要结合其他方法明确诊断.%Purpose To evaluate the value of radionuclide plane imaging (with or without SPECT/CT) in the diagnosis of the suspected ectopic thyroid glands (ETG) in head and neck. Materials and Methods In order to identify the suspected ETG in head and neck,34 suspected ETG patients were performed underwent with radionuclide imaging with. 99mTcO4- was used as imaging agent,4 cases of them had also performed underwent 131I scan. 19 uncertain cases were given SPECT /CT imaging ,with 99mTcO4- .Results 10 cases of ETG were diagnosed correctly.4 cases were misdiagnosed or can't be confirmed. 20 cases with other diseases ETG were excluded correctly in 20 cases with other diseases. The total accuracy rate was 88.24％.Conclusion Radionuclide plane imaging with or without (SPECT/CT) has a high value in identifying the functional ETG in head and neck. But in the case of the ETG with no or low function, other methods were needed.