超声弹性评分联合实时超声弹性成像定量参数对良恶性甲状腺结节诊断价值分析

目的：探讨超声弹性评分联合弹性应变值感兴趣区域（ROI）A值]对良、恶性甲状腺结节的诊断价值。方法对153例患者共计178个甲状腺结节进行超声弹性成像检查，计算弹性评分与ROI A值。以术后病理诊断为金标准，采用受试者工作特征曲线比较ROI A值、弹性评分与二者联合应用的诊断价值，并确定相应的最佳诊断界值。结果ROI A值诊断的最佳诊断界值为0．0017，此时灵敏度为82．46％、特异度为78．13％、准确度为80．90％、比值比为16．79；弹性评分诊断的最佳诊断界值为2．6，此时灵敏度为84．21％、特异度为81．25％、准确度为83．15％、比值比为23．11；以弹性评分2．6和ROI A值0．0017为界，二者联合诊断的灵敏度为78．95％、特异度为90．63％、准确度为84．15％、比值比为36．25。结论超声弹性评分联合实时超声弹性成像定量参数可以提高良、恶性甲状腺结节的诊断准确度。

Application value of ultrasound elastography score combined with real-time ultrasound elastography for the diagnosis of benign and malignant thyroid nodules

Objective To assess the clinical value of ultrasound elastography score and the value of region of interest （ROI） A value in the strain ratio for the differential diagnosis of benign and malignant thyroid nodules .Meth-ods A total of 153 patients with 178 thyroid nodules underwent examinations with real-time ultrasonic elastography to obtain the elasticity score and the ROI A value in the strain ratio .The pathological results were obtained after op-eration .Receiver operating characteristic curves were used to explore the diagnostic value of ROI A value alone ,elas-ticity score alone and combination of ROI A value and elasticity score ,and the best cutoff point was determined .Re-sults The best cutoff point of ROI A value was 0 .001 7 ,with the sensitivity ,specificity ,accuracy and odds ratio of 82 .46% ,78 .13% ,80 .90% and 16 .79 respectively .The best cutoff point of elasticity score was 2 .6 ,with the sensi-tivity ,specificity ,accuracy and odds ratio of 84 .21% ,81 .25% ,83 .15% and 23 .11 respectively .Combined the cutoff point 0 .001 7 for ROI A value and the cutoff point 2 .6 for elasticity score ,the sensitivity ,specificity ,accuracy and odds ratio were 78 .95% ,90 .63% ,84 .15% and 36 .25 respectively .Conclusion Combination of the ROI A value and elasticity score could improve the accuracy of diagnosis .