表象训练在虚拟现实内镜模拟器培训胃镜初学者中的应用

目的:探讨表象训练在胃镜技能获得中的作用.方法:分层抽样法抽取我校08级临床医学专业男学员30人,随机分为3组.A组(n=10)在常规模拟器练习过程中加入表象训练,B组(n=10)进行常规模拟器练习,C组(n=10)不做任何练习.完成培训结束时所有学员操作病例1,模拟器给出的评分,比较3组间的考核评分.所有学员接受培训前、后心理测评,评价心理状态是否稳定.结果:比较3组考核成绩显示,3组间总分差异有统计学意义,3组组间两两比较显示差异有统计学意义,其中A组优于B组,A组优于C组,B组优于C组.进一步分析差异原因,结果表明,安全性评分和准确性评分、残气量评分、患者痛苦指数评分、操作时间评分A、B、C3组间差异均有统计学意义;而A、B组两组之间比较,只有残气量评分、操作时间评分差异有统计学意义.结论:表象训练可提高使用虚拟现实内镜模拟器培训胃镜技能的效果,教学方法容易实施,学员容易掌握,是一种可行性较高的教学辅助方法.

Effect of mental imagery rehearsal on gastroscopy training with virtual reality endoscopic simulator

AIM:To use the mental imagery rehearsal in gastroscopy training with virtual reality endoscopic simulator,and to analyze the role of this method in gastroscopy skill acquisition. METHODS:Thirty male students were selected from our university using stratified sampling method. The participants were randomly divided into three groups:A,B,and C. In groupA,mental imagery rehearsal was joined into the conventional practice with simulator,while group B was exercised conventionally. Group C did not receive any practice. All trainees underwent psychological evaluation before and after the training. RESULTS:There was a significant difference in the operation score among the three groups. Group C was better than the other two groups,and group B was better than group C. There were significant differences in safety score,accuracy score,overinsufflation score,patient pain index score,and operating time score between the three groups. Only overinsufflation score and operating time score differed significantly between group A and group B. CONCLUSION:Mental imagery rehearsal can improve the study effect of virtual reality endoscopic simulator in training gastroscopy skills,and this method is simple and easy to understand by students,providing a new way for training with the simulator.