超声扫查路线图对颈椎超声初学者学习效果的影响

Effect of ultrasound scanning route map on the learning effectiveness of cervical ultrasound for beginners

目的 利用团队近期研究成果“颈椎超声扫查路线图”作为教学工具,评价该工具对颈椎超声初学者学习效果、学习信心的影响。方法 本研究为自身前-后对照研究。纳入北京协和医院麻醉科40名临床一线医生,完成评估问卷1。问卷设计为:3个关于颈椎超声理论知识的自我评估问题,3个关于颈椎超声实践技能的自我评估问题和1个关于未来使用颈椎超声的意愿问题。在不涉及路线图的传统教学后,再次完成相同内容的问卷2。休息20 min后,教师介绍并解释路线图,随后学员完成问卷3。问卷3增加了4个学习满意度相关问题。所有问题的答案使用1到10分制评估。主要结果为综合学习得分,计算为(理论知识自评总分+实践技能自评总分+未来使用颈椎超声的意愿得分)/7。结果 40位学员在学习前、传统学习后、路线图学习后三个时间点的综合学习得分为2.9±1.3、4.8±1.8、5.7±1.8,F(2,22)=52.11,P<0.001,偏η2=0.83。向学员介绍路线图后,与介绍前的传统培训结果相比,综合学习得分增加了1.0 (95%CI:0.46~1.49)(P<0.001)。结论 “颈椎超声扫查路线图”可以显著提高颈椎超声初学者的学习效果及学习信心,可作为常规培训工具应用于颈椎超声教学。

Objective Using our team′s recent research achievement“the cervical ultrasound scanning route map”as a teaching tool,to evaluate its impact on the learning effectiveness and confidence of beginners in the process of learning cervical spinal ultrasonography.Methods This study is a before and after self-control study.After recruitment of 40 cervical ultrasound beginners,they had completed questionnaire 1.The questionnaire was designed with three self-assessment questions on theoretical knowledge of cervical spinal ultrasound,three self-assessment questions on practical skills of cervical spinal ultrasound and one question on willingness to use cervical spinal ultrasound in the future.After traditional teaching without involving the route map,beginners completed questionnaire 2 with the same content.After a 20 min break,teacher introduced and explained the route map to the beginners,then the beginners completed questionnaire 3.Questions related to satisfaction with this learning experience had been added to questionnaire 3.The answers to all questions were scored on a scale of 1-10.In this study,the main outcome was the comprehensive learning score,calculated as(sum score of theoretical knowledge+sum score of practical skills+score of willingness to use cervical ultrasound in the future)/7.Results Beginners′comprehensive learning score at the three time points were 2.9±1.3,4.8±1.8,5.7±1.8,F(2,22)=52.11,P<0.001,partial Eta squared=0.83.After introducing the route map,their comprehensive learning score increased 1.0(95%CI:0.46-1.49)(P<0.001)compared to scores after traditional training.Conclusions The route map may significantly improve learning effectiveness and confidence of beginners in the field of cervical spinal ultrasonography and can be used as a routine training tool in the teaching of cervical spinal ultrasonography.