声触诊组织成像定量技术诊断腕管综合征正中神经卡压的价值

Journal of Chinese Practical Diagnosis and Therapy(2017)

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Abstract
目的 探讨声触诊组织成像定量技术(virtual touch tissue imaging quantification,VTIQ)在腕管综合征(carpal tunnel syndrome,CTS)正中神经卡压诊断中的价值.方法 CTS患者49例(72腕)为CTS组,健康志愿者23例(46腕)为对照组,均行二维超声检查测量腕管入口处正中神经横截面积(cross-sectional area,CSA),并应用VTIQ技术测量正中神经的剪切波速度(shear wave velocity,SWV);绘制ROC曲线计算正中神经CSA及SWV诊断CTS的效能.结果 CTS组正中神经CSA[(0.131±0.041)cm2]较对照组[(0.073±0.019)cm2]大,SWV[(3.857±1.029)m/s]较对照组[(2.542±0.368) m/s]快(P<0.05);正中神经CSA诊断CTS最佳截断值为0.095 cm2,AUC为0.894(95%CI:0.839~0.949,P=0.001),灵敏度、特异度和准确度分别为76.4%、89.1%和81.4%;正中神经SWV诊断CTS最佳截断值为3.020 m/s,AUC为0.930(95%CI:0.886~0.975,P=0.001),灵敏度、特异度和准确率分别为83.3%、91.3%和86.4%.结论 应用VTIQ技术检测腕管人口处正中神经SWV值和应用二维超声测量腕管入口处正中神经CSA,在CTS诊断中均具有较好的应用价值.
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Key words
Carpal tunnel syndrome,median nerve,ultrasound elastography,shear wave velocity
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