甲状腺结节内强回声后方闪烁伪像在结节定性中的价值

Value of color Doppler twinkling artifact behind hyperechoic regions in thyroid nodules

目的探讨甲状腺结节内强回声后方闪烁伪像在结节定性中的价值。方法选取52例甲状腺结节患者(共88个结节),术前超声均检出甲状腺结节内含有强回声结构,根据强回声后方是否出现闪烁伪像将88个结节分为闪烁伪像阳性组30个结节(A组)和闪烁伪像阴性组58个结节(B组)。两组均行外科手术治疗,对比其病理结果良恶性是否存在差异。结果 A组手术病理恶性率为86.7%(26/30),B组手术病理恶性率为17.2%(10/58),两组比较差异有统计学意义(χ~2=39.4,P<0.05)。根据结节内强回声结构后方闪烁伪像诊断甲状腺恶性结节的敏感性为72.2%,特异性为92.3%,Youden指数为0.65,曲线下面积为0.823。结论甲状腺结节内强回声后方闪烁伪像对恶性结节的诊断有一定的价值。

Objective To explore the value of color Doppler twinkling artifact behind hyperechoic regions in thyroid nodules. Methods Eighty-eight thyroid nodules with hyperechoic regions of 52 patients were devided into two groups：group A,nodulars get a positive result of twinkling artifact behind hyperechoic regions（n=30）,group B,nodulars get a negative result of twinkling artifact behind hyperechoic regions（n=58）. The pathologic data of two groups were compared. Results The malignant rate of group A was 86.7%（26/30）,while the malignant rate of group B was 17.2%（10/58）,the difference between two groups was statistically significant（χ2=39.4,P0.05）.The sensitivity and specificity of twinkling artifact behind hyperechoic regions in diagnosis of malignant nodules were 72.2% and 92.3%,Youden index was 0.65,the area under curve was 0.823.Conclusion The occurrence of color Doppler twinkling artifact behind hyperechoic regions in thyroid nodules is helpful for diagnosing malignant nodules.