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目的总结甲状腺结节的CT表现,探讨其CT诊断和鉴别诊断要点。方法分析我科2011年7月—2012年3月收治的122例甲状腺结节手术患者的病例资料,总结甲状腺结节性病变的CT表现,与术后病理结果对比,计算诊断符合率,计算CT值。结果良性结节包括结节性甲状腺肿、甲状腺腺瘤,CT诊断符合率为94.7%;恶性结节为甲状腺癌,CT诊断符合率为84.8%。结节性甲状腺肿、甲状腺腺瘤、甲状腺癌CT值分别为(57.1±8.2)HU,(51.4±6.9)HU和(64.6±8.5)HU,正常腺体CT值为(118.5±6.3)HU,病变区CT值有明显降低。结论 CT值对于甲状腺结节的定位诊断有一定价值;结节性病变的CT表现及其与周围组织的关系、有无颈部淋巴结转移对其诊断及鉴别诊断具有重要意义。
Objective To summarize the CT findings of thyroid nodules and to discuss the main points of CT diagnosis and differential diagnosis. Methods The clinical data of 122 cases of thyroid nodules from July 2011 to March 2012 in our department were analyzed. The CT findings of thyroid nodules were summarized and compared with the postoperative pathological results. The diagnostic coincidence rate was calculated and the CT value. Results The benign nodules included nodular goiter and thyroid adenoma. The coincidence rate of CT diagnosis was 94.7%. The malignant nodules were thyroid cancer. The coincidence rate of CT diagnosis was 84.8%. The CT values of nodular goiter, thyroid adenoma and thyroid cancer were (57.1 ± 8.2) HU, (51.4 ± 6.9) HU and (64.6 ± 8.5) HU, respectively. The CT value of normal gland was (118.5 ± 6.3) HU, Lesion CT value was significantly reduced. Conclusion The CT value has some value in the diagnosis of thyroid nodules. The CT findings of nodular lesions and their relationship with the surrounding tissues and the presence or absence of cervical lymph node metastasis are important for the diagnosis and differential diagnosis of thyroid nodules.