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目的：探讨超声和核素显像法诊断甲状腺结节的价值。材料和方法：对比研究超声和核素显像诊断经手术病理证实的１００例甲状腺结节。结果：核素显像中，冷（凉）、温、热结节分别占７５％、１９％、６％；冷（凉）、温结节中甲状腺癌分别为８％和１１％，热结节中未见恶性存在。超声检查诊断甲状腺结节良恶性的敏感性６２５％、特异性９６７％、准确性９４％、阳性预测值６２５％、阴性预测值９６７％、假阴性３／８和假阳性３例。结论：甲状腺扫描能反映结节摄取９９ｍＴｃＯ４－功能，据此可判断肿瘤性质，但存在一定困难；超声对甲状腺结节具有定性诊断价值，但对恶性结节诊断时存在假阴性和假阳性。
Objective: To investigate the value of ultrasound and nuclide imaging in the diagnosis of thyroid nodules. Materials and Methods: A comparative study of ultrasound and radionuclide imaging diagnosed 100 cases of thyroid nodules confirmed by pathology. Results: In the radionuclide imaging, cold (cold), warm, and hot nodules accounted for 75%, 19%, and 6%, respectively. In cold (cold) and warm nodules, thyroid cancer was 8% and 11%, respectively. There was no malignant presence in the festival. Ultrasonography diagnosed benign and malignant thyroid nodules with a sensitivity of 62.5%, a specificity of 96.7%, an accuracy of 94%, a positive predictive value of 62.5%, a negative predictive value of 96.7%, and a false negative of 3/8. There were 3 false positives. Conclusion: Thyroid scan can reflect nodule uptake 99mTcO4-function, according to which can determine the nature of the tumor, but there are some difficulties; ultrasound on the thyroid nodule qualitative diagnostic value, but there are false negative and false positive diagnosis of malignant nodules.