【摘要】 目的 探讨彩色多普勒超声对临床甲状腺良恶性结节的诊断价值。 方法 对2007-2010年105例经手术病理证实的甲状腺结节患者资料进行回顾性分析，总结其声像图特征。 结果 105例患者中，良性结节71例，甲状腺癌34例，超声诊断符合率81.9%，误诊18例（17.1%）。 结论 彩色多普勒超声是诊断甲状腺结节的首选影像学检查方法，但对良恶性结节的鉴别及微小癌的诊断有局限性。【Abstract】 Objective To evaluate the value of color Doppler flow imaging in diagnosis of benign and malignant thyroid nodules. Methods We retrospectively analyzed the clinical data of 105 patients with thyroid nodules confirmed by pathology between 2007 and 2010 and summarized the ultrasonography results. Results Among the 105 cases, 71 were benign nodules and 34 were malignant tumors. The overall diagnostic accordance rate was 81.9% with 18 cases (17.1%) of misdiagnosis. Conclusion Ultrasonography is the first imaging modality for thyroid nodule examination, but it is limited in the diagnosis of microcarcinoma and in distinguishing malignant from benign nodules in the same thyroid.