| 摘要: |
| 目的: 探究声触诊弹性成像测量正常人群臂丛神经根弹性值的信度，并分析其弹性值特征。
方法: 由同一操作者使用声触诊弹性成像技术对研究招募的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，两次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对比分析。
结果: 所测正常人群的左右侧C5、C6和C7神经根弹性值分别为20.64±6.87/21.34±5.35/25.48±7.13KPa和20.19±7.86/22.35±7.99/24.61±8.15KPa。正常人群左右侧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21.01/18.16/20.02和24.79/28.09/24.36KPa。合并左右侧数据分析示C5、C6、C7的弹性值分别为20.41±7.34/21.85±6.78/25.03±7.58KPa，呈显著逐渐增大趋势（P＜0.01），两两比较均存在统计学差异（P＜0.05）。
结论: 声触诊弹性成像技术测量正常人群C5-C7臂丛神经根的弹性值具有一定的可重复性，信度为好。考虑到本研究得出的最小可检测变化值较高，故在使用该技术进行疾病变化或疗效的定量评估时，应予以充分考虑。 |
| 关键词: 声触诊弹性成像, 臂丛神经根, 信度 |
| DOI： |
| 投稿时间：2019-09-08修订日期：2019-09-08 |
| 基金项目: |
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| A study about the reliability of ultrasonic sound touch elastography of measuring the elasticity of brachial plexus roots in normal people and their characteristics |
| xu xiaolan,guzailinueryaseng,xianan |
| (Tongji hospital of Huazhong university of science and techology) |
| Abstract: |
| Objective To explore the reliability of ultrasonic sound touch elastography of measuring the elasticity of brachial plexus roots in normal people, and further analyze their characteristics.
Methods The sound touch elastography technique was used do repeated measurements for the elasticity of the bilateral C5, C6 and C7 nerve roots of the 44 healthy volunteers enrolled twice in this study. The two times measurements were summarized and used for evaluation of intra-rater reliability and minimal detectable change. Selected one of the two test results randomly from all subjects, and summarized for comparative analysis of characteristics and influencing factors related to elasticity of brachial plexus roots. Results The nerve root elasticity values of C5, C6 and C7 on the left and right sides of the normal population were 20.64±6.87/21.34±5.35/25.48±7.13KPa and 20.19±7.86/22.35±7.99/24.61±8.15KPa, respectively. The internal reliability of the evaluator for the C5/C6/C7 nerve root elasticity measurement in the left and right side of the normal population using the Resona7 ultrasound system was 0.70/0.63/0.74 and 0.68/0.60/0.71, respectively, and the corresponding minimal detectable change was 21.01/18.16/20.02 and 24.79/28.09/24.36KPa. Further data analysis of the combination of both sides showed that the elastic values of C5, C6 and C7 were 20.41±7.34/21.85±6.78/25.03±7.58KPa, which showed a significant increasing trend (P<0.01). There are significant statistical differences between the three pairs (P<0.01). Conclusions Sound touch shear wave elastography has a certain reproducibility and good reliability in measuring the elasticity of C5-C7 brachial plexus roots in normal people. Considering that the minimal detectable change obtained in this study is high, it should be fully considered when using this technique for quantitative assessment of disease changes or treatment efficacy. |
| Key words: Sound touch elastography, brachial plexus root, reliability |
