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131I-全身显像(whole-body scan, WBS)是为探寻分化型甲状腺癌(differentiated thyroid cancer,DTC)患者术后或131I治疗后是否存在残留甲状腺组织、复发及其转移灶的有效手段,对DTC分期、疗效评价和预测预后有着重要价值。在131I-WBS中非甲状腺组织假阳性显像较为常见且易导致误诊,而且很多机制尚不明确。本文就131I-WBS中胸部生理性因素、病理性因素及人为因素3个方面原因的假阳性摄取进行相关研究。
分化型甲状腺癌胸部131I显像假阳性分析
Analysis of differentiated thyroid cancer false-positive uptake in the thorax cavity on radioiodine whole-body scan
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摘要: 分化型甲状腺癌(DTC)131I-全身显像(WBS)时除在功能性甲状腺组织显影外,非甲状腺组织假阳性病变也常有不同程度131I摄取而显影。笔者就DTC患者胸部131I显像假阳性的原因及其机制进行分析,以期为临床DTC患者的诊疗提供必要帮助。Abstract: In 131I whole-body scan (WBS), imaging of normal thyroid tissues and differentiated thyroid cancer (DTC) can often uptake 131I and non-thyroid tissues to some extent. The author analyzes the reason and mechanism of false-positive uptake in the thorax cavity to provide essential help for the clinical diagnosis and treatment of patients with DTC.
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Key words:
- Thyroid neoplasms /
- Iodine radioisotopes /
- Radionuclide imaging /
- Thorax /
- False positive
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