目的 研究超声、CT诊断甲状腺 癌的影像学特征及诊断价值。方法 选取 我院2011年8月至2014年8月125例甲状腺 癌患者为研究对象，均进行CT及超声诊 断，比较两种检测方式对甲状腺癌病理 类型的检出率，观察微小癌病灶的诊断 情况，最后分析联合检测的诊断价值。 结果 CT诊断检出率为75.2%与超声诊断 检出率60.0%比较显著较高(χ2 =6.593， P＜0.05)；CT诊断微小乳头状癌符合率 为25.0%与超声诊断符合率18.8%比较较 高，但比较无统计学意义(P＞0.05)；CT 与超声联合检测阳性率为84.0%与CT及超 声单一检测比较显著较高(P＜0.05)。结 论 CT对甲状腺癌的检出率优于超声诊 断，联合检测可提高甲状腺癌检出率， 具有较高的临床应用价值。

Objective To study the imaging features and diagnostic value of ultrasonography and CT in the diagnosis of thyroid cancer. Methods 125 cases of thyroid cancer patients in the hospital during August 2011 to August 2014 were selected as the research object and all received CT and ultrasonography diagnosis. The detection rates of pathological types of thyroid cancer were compared between the two kinds of detection methods. The diagnosis of microcarcinoma lesions was observed. Finally, the diagnostic value of combined detection was analyzed. Results The positive rate of CT diagnosis was 75.2% which was significantly higher than 60.0% of ultrasonography (χ2 =6.593, P ＜0.05); The coincidence rate of CT in diagnosis of papillary microcarcinoma was 25.0% which was relatively higher than 18.8% of ultrasonography but there is no statistical significance (P＞0.05); The positive rate of CT and ultrasonography combined detection was 84.0% which was significantly higher than that of CT or ultrasonography single detection (P＜0.05). Conclusion The detection rate of CT in thyroid cancer is better than that of ultrasonography diagnosis, combined detection can improve the detection rate of thyroid cancer, which is of relatively higher clinical application value.