声触诊弹性成像测量正常成人臂丛神经根弹性值的信度及特征研究  

Study on the reliability and features of sound touch elastography measuring the elasticity of brachial plexus roots in normal adults

作　　者：许小兰[1] 古再丽努尔·亚森 夏楠[2] XU Xiaolan;GUZAILINUER·Yasen;XIA Nan(Department of Medical Ultrasound,Tongji Hospital Affiliated to Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430000,China)

机构地区：[1]华中科技大学同济医学院附属同济医院超声影像科,武汉市430000 [2]华中科技大学同济医学院附属同济医院康复医学科,武汉市430000

出　　处：《临床超声医学杂志》2020年第4期250-253,共4页Journal of Clinical Ultrasound in Medicine

摘　　要：目的探讨声触诊弹性成像(STE)测量正常成人臂丛神经根弹性值的信度,并分析其弹性值特征。方法由同一操作者使用STE对44例健康志愿者的双侧C5、C6及C7神经根的弹性值进行两次测量,测量结果汇总后用于评估者内部信度和最小可检测差异计算。随机从所有受试者的两次测量数据中抽取其中一次,数据汇总后用于相关特征及影响因素分析。结果44例健康志愿者左、右侧C5、C6及C7神经根弹性值分别为(20.64±6.87)kPa、(21.34±5.35)kPa、(25.48±7.13)kPa和(20.19±7.86)kPa、(22.35±7.99)kPa、(24.61±8.15)kPa,左、右侧比较差异无统计学意义。合并左、右侧数据分析示C5、C6、C7的弹性值分别为(20.41±7.34)kPa、(21.85±6.78)kPa、(25.03±7.58)kPa,呈逐渐增大趋势(P<0.01),两两比较差异均有统计学意义(均P<0.05)。健康志愿者左、右侧C5、C6、C7神经根弹性测量的评估者内部信度分别为0.70、0.63、0.74和0.68、0.60、0.71,其所对应的最小可检测变化分别为21.01 kPa、18.16 kPa、20.02 kPa和24.79 kPa、28.09 kPa、24.36 kPa。结论STE测量正常成人C5~C7臂丛神经根的弹性值具有一定的可重复性,信度较好,最小可检测变化值较大。建议使用STE技术进行疾病变化或疗效的定量评估时注意其可能存在的测量误差。Objective To explore the reliability of sound touch elastography measuring the elasticity of brachial plexus roots in normal adults,and to analyze their characteristics.Methods The sound touch elastography technique was used to proceed repeated measurements for the elasticity of the bilateral C5,C6 and C7 nerve roots of the 44 enrolled healthy volunteers twice in this study by one examiner.The two measurements were summarized and used for evaluation of intra-rater reliability and minimal detectable change.One of the two test results was selected randomly from all subjects,and the data were summarized and used for the analysis of relevant characteristics and influencing factors.Results The nerve root elasticity values of C5,C6 and C7 on the left and right sides of the normal adults were(2.0.64±6.87)kPa,(2.1.34±5.35)kPa,(2.5.48±7.13)kPa and(20.19±7.86) kPa,(22.35±7.99) kPa,(24.61±8.15) kPa,respectively,and the differences of both sides were not significant.Further analysis of the combination of both sides showed that the elastic values of C5,C6 and C7 were(20.41±7.34) kPa,(2.1.85±6.78)kPa,(2.5.03±7.58)kPa,respectively,which showed a significant increasing trend(P<0.01).There were significant differences in pairs(all P<0.05).The internal reliability of the evaluator for the C5,C6,C7 nerve root elasticity measurement in the left and right side of 44 normal adults were 0.70,0.63,0.74 and 0.68,0.60,0.71,respectively,and the corresponding minimal detectable changes were 21.01 kPa,18.16 kPa,20.02 kPa and 24.79 kPa,28.09 kPa,24.36 kPa,respectively.Conclusion Sound touch elastography has a certain reproducibility,good reliability and higher minimal detectable change in measuring the elasticity,of C5~C7 brachial plexus roots in normal adults.Possible errors in measurement should be fully considered when using this technique for quantitative assessment of disease changes or treatment efficacy.

关 键 词：声触诊弹性成像 臂丛神经根 信度 正常成人 

分 类 号：R445.1[医药卫生—影像医学与核医学]