CT联合高分辨率超声检查在肿瘤性甲状腺结节中的影像学表现及其诊断价值分析

Imaging and Diagnostic Value of CT Combined with High-resolution Ultrasound for Tumor of Thyroid Lesions Nodules

目的:探讨CT联合高分辨率超声(US)检查在肿瘤性甲状腺结节的影像学表现及其诊断价值分析。方法:采用回顾性方法分析,选取2011年1月至2014年1月以来收治的86例肿瘤性甲状腺多发结节住院患者,比较CT、US和两者联合检查的影像学特征,并计算不同方法诊断甲状腺多发结节的敏感性、特异性、符合率,并对结果进行分析。结果:CT联合高分辨超声在甲状腺结节的晕环、包膜侵袭、边界清楚、结节钙化等影像特征显示率明显高于CT组,其差异有统计学意义(χ2=26.694,14.400,8.235,14.439;P<0.05)。CT联合高分辨超声诊断多发结节的特异度、敏感度、准确性均高于其其他两组,差异具有统计学意义(χ2=6.37,5.11,5.25;P<0.05),其中联合组的符合率(72/86)明显高于超声组(50/86)和CT组(43/86),其差异均有统计学意义(χ2=13.647,22.067;P<0.01)。结论:超声检查应作为肿瘤性甲状腺结节的首选方法,而CT联合高分辨超声检查可提高肿瘤性甲状腺结节的诊断和鉴别的准确性。

Objective： To investigate the value of CT combined with ultrasound（ US） imaging for thyroid lesions nodules. Method： The clinical data of 86 cases with multiple thyroid nodules by CT and US examination were retrospectively analyzed from January 2011 to January 2014 in our hospital. The sensitivity,specificity and accuracy of CT,US and the combination of the two methods were calculated based on the final pathology results and the results were analyzed. Result： CT combined with high- resolution ultrasound has better capsule invasion,halo,nodular calcification and clear boundary features etc than CT group,the difference was statistically significant（ χ^2= 26. 694,14. 400,8. 235,14. 439; P〈0. 05）. CT combined with high-resolution ultrasound has higher specificity,sensitivity and accuracy in diagnosis multiple nodules than the other two groups,the difference was statistically significant（ χ^2= 6.37,5.11,5.25; P〈0.05）.Compliance rate among union group（ 72 / 86） was significantly higher than that in the ultrasound group（ 50 / 86） and the CT group（ 43 / 86）,and the differences were statistically significant（ χ^2= 13.647,22.067; P〈0.01）. Conclusion： Ultrasonic examination should be as the preferred method for neoplasm thyroid nodules,and CT in combination with high resolution ultrasound can improve the accuracy of diagnosis and identification of neoplasm thyroid lesions nodules.