超声弹性应变率比值在TI-RADS 4～6类甲状腺结节鉴别诊断中的应用

发布时间：2018-08-25 12:08

【摘要】：目的 :探讨超声弹性应变率比值在TI-RADS 4~6类甲状腺结节中的应用价值。方法:常规超声观察303例(共324个结节)甲状腺结节的二维声像图特征,依据甲状腺影像数据报告与评分系统(TI-RADS)对甲状腺结节进行分类,并进行超声弹性成像,绘制ROC曲线确定弹性应变率比值最佳鉴别诊断界值。将137个TI-RADS 4~6类甲状腺结节分组:Ⅰ组TI-RADS 4A类,Ⅱ组TI-RADS 4B类,Ⅲ组TI-RADS 5~6类(6类中除去已经病理证实者),分析弹性应变率比值在3组病例中的应用价值。结果:弹性应变率比值最佳界值为0.55,弹性应变率比值在Ⅰ组中差异无统计学意义,在Ⅱ、Ⅲ组中差异具有统计学意义。弹性应变率比值鉴别诊断Ⅱ组和Ⅲ组的敏感性、特异性、准确性、阳性预测值分别为90.9%、75.0%、87.5%、93.0%(Ⅱ组)和85.7%、80.0%、84.6%、94.7%(Ⅲ组)。结论 :对于Ⅱ、Ⅲ组,联合应用TI-RADS分类系统与弹性应变率比值具有较高的应用价值,提示恶性结节应少用细针穿刺活检等其他检查,早期进行手术治疗;对于Ⅰ组,弹性应变率应用价值有限,应尽早结合其他检查手段以免延误诊断。
[Abstract]:Objective: to evaluate the value of ultrasonic elastic strain rate ratio (ESR) in 6 types of thyroid nodule (TI-RADS 4). Methods: three hundred and thirty three cases (324 nodule) of thyroid nodule were observed by conventional ultrasound. The thyroid nodules were classified according to the thyroid imaging data report and score system (TI-RADS), and the ultrasonic elastic imaging was performed. ROC curve was drawn to determine the best differential diagnostic limit of elastic strain rate ratio. 137 thyroid nodules of TI-RADS 4N were divided into three groups: group 鈪，

本文编号：2202835