甲状腺影像报告和数据系统分级在甲状腺微小癌超声检查中的初步应用

目的：探讨甲状腺影像报告和数据系统（TI-RADS）分级在甲状腺微小癌（TMC）超声检查中的应用。方法对最大径≤1.0 cm的232例甲状腺结节患者的322个甲状腺结节进行TI-RADS分类，并与病理结果对照分析。结果统计学分析表明，甲状腺良性结节多见于TI RADS 2级、3级、4A级类结节，恶性结节多见于TI-RADS 4A级、4B级、5级结节；两者诊断甲状腺结节良恶性的差异具有统计学意义（χ2=110.10，P＜0.01）。其诊断甲状腺结节的灵敏度和特异度分别为74.3％（110/148）和75.9％（132/174）。超声TI-RADS分级诊断的受试者工作特征曲线（ROC）的曲线下面积为0.822。结论TMC的TI-RADS分级可较好地用于甲状腺结节良恶性的诊断鉴别。

Application of Thyroid Imaging Reporting and Data System in ultrasound examination of thyroid microcarcinoma

Objective To explore the application of Thyroid Imaging Reporting and Data System （TI-RADS） in ultrasound examination of thyroid microcarcinoma （TMC）. Methods A total of 232 patients with 322 thyroid nodules with diameter less than or equal to 10 mm were evaluated by using TI-RADS ultrasonographic stratification, and the results were compared with pathological analysis. Results The benign nodules were commonly classified as TI-RADS 2, 3 and 4A, and the malignant nodules were classified as TI-RADS 4A, 4B and 5. The differences were statistically significant （χ2=110.10,P＆lt;0.01）. The sensitivity and specificity of TI-RADS in diagnosis of benign and malignant thyroid lesions were 74.3% （110/148） and 75.9% （132/174）, respectively. The area under receiver operating characteristic curve was 0.822. Conclusion TI-RADS ultra-sonographic stratification of TMC can be well used in differentiation of benign and malignant nodules.