MSCT联合超声弹性成像应变率比值法检测在甲状腺结节定性诊断中的应用观察  

Application of MSCT Combined with Strain Rate Ratio of Ultrasound Elastography in Qualitative Diagnosis of Thyroid Nodules

作　　者：管迪 GUAN Di(CT room,Qingdao Jiaozhou Central Hospital,Qingdao 266300,Shandong Province,China)

机构地区：[1]青岛市胶州中心医院CT室,山东青岛266300

出　　处：《中国CT和MRI杂志》2021年第10期32-35,共4页Chinese Journal of CT and MRI

摘　　要：目的探究多层螺旋CT(MSCT)联合超声弹性成像应变率(SR)比值法对甲状腺结节性质的鉴别价值。方法回顾性分析2017年7月至2019年9月于我院行MSCT检查和(或)超声弹性成像检查的甲状腺结节患者的临床资料,以临床病理结果作为“金标准”,分析MSCT及SR比值法单独或联合鉴别甲状腺结节性质的效能。结果MSCT对良恶性结节的诊断敏感度、特异度、准确度、阳性预测值、阴性预测值分别为72.41%、87.84%、83.50%、70.00%、89.04%。良性结节平均SR比值为2.06±0.85;恶性结节平均SR比值为9.01±2.41,恶性结节SR比值显著高于良性结节(P<0.05)。以SR比值为3.3作为诊断截点,SR比值法诊断甲状腺恶性结节的敏感度、特异度、准确度、阳性预测值、阴性预测值分别为82.76%、87.13%、86.15%、64.86%、94.62%。MSCT联合SR比值诊断的敏感度、特异度、准确度、阳性预测值、阴性预测值分别为93.33%、93.10%、93.18%、87.50%、96.43%。结论MSCT及超声弹性成像SR比值法对甲状腺结节均有一定鉴别价值,MSCT及超声弹性成像SR比值法优势互补,两者联合可一定程度提高诊断效能。Objective To explore the value of multi-slice spiral CT(MSCT)combined with the strain rate(SR)ratio of ultrasound elastography in identifying thyroid nodules.Methods The clinical data of patients with thyroid nodules who completed MSCT and/or ultrasound elastography in the hospital between July 2017 and September 2019 were retrospectively analyzed.With clinical and pathological results as the golden standard,the efficiencies of combined or alone identification of MSCT and SR ratio for the nature of thyroid nodules were analyzed.Results The diagnostic sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of MSCT for benign and malignant nodules were 72.41%,87.84%,83.50%,70.00%,and 89.04%,respectively.The average SR ratio of benign nodules(2.06±0.85)was significantly lower than that of malignant nodules(9.01±2.41)(P<0.05).With the SR ratio of 3.3 as the diagnostic cutoff point,the sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of the SR ratio for diagnosing malignant thyroid nodules were 82.76%,87.13%,86.15%,64.86%,and 94.62%,respectively.The diagnostic sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of MSCT combined with SR ratio diagnosis were 93.33%,93.10%,93.18%,87.50%,and 96.43%,respectively.Conclusion Both MSCT and SR ratios of ultrasound elastography can be used to identify thyroid nodules and complement each other’s advantages.The combination of the two can improve diagnostic efficiency to a certain extent.

关 键 词：X计算机摄影 超声弹性成像 应变率比值 甲状腺结节 

分 类 号：R445.2[医药卫生—影像医学与核医学] R322.51[医药卫生—诊断学]