基于微信的PBL联合微课堂用于住培学员胃超声造影的教学实践

Application of WeChat-based PBL teaching method combined with micro-classroom in the teaching of contrast-enhanced gastrointestinal ultrasound imaging

目的探讨基于微信的以问题为基础的学习(problem-based learning,PBL)联合微课堂用于住院医师规范化培训学员胃超声造影教学中的应用价值。方法选取2019年1月至2021年6月在重庆医科大学附属第一医院超声科进行住院医师规范化培训的40名学员为研究对象。将其分为试验组(基于微信的PBL联合微课堂教学)和对照组(传统教学)。教学内容均为胃超声造影诊断。理论课和实习操作课结束后对两组学生进行胃超声造影理论考试和操作考试。采用SPSS 22.0进行t检验和秩和检验。结果胃超声造影教学结束后,试验组的理论考试成绩高于对照组[(93.09±2.31)vs.(90.63±2.26)],差异有统计学意义(P<0.05)。但两组学员中操作成绩各等级的人数分布差异无统计学意义(P>0.05)。结论基于微信的PBL联合微课堂用于住培学员胃超声造影的教学效果良好,可尝试推广应用。

Objective To investigate the application value of WeChat-based problem-based learning teaching method combined with micro-classroom in the teaching of contrast-enhanced gastrointestinal ultrasound imaging for residents in standardized residency training.Methods A total of 40 trainees who underwent the standardized residency training in the Department of Ultrasound,The First Affiliated Hospital of Chongqing Medical University from January 2019 to June 2021 were selected as the research objects.They were randomly divided into the experimental group(WeChat-based PBL teaching method combined with micro-classroom)and the control group(traditional teaching method).The teaching content was the diagnosis of gastrointestinal ultrasound imaging.After the theoretical learning and practice,assessments of contrast-enhanced gastrointestinal ultrasound imaging including theory and operating practice were performed to all students.SPSS 22.0 was used for t test and rank sum test.Results After training,the theoretical test scores of the experimental group were higher than those of the control group[(93.09±2.31)vs.(90.63±2.26)],and the difference was statistically significant(P<0.05).However,there was no significant difference between the two groups in the number distribution of students at all levels of operational practice(P>0.05).Conclusion The WeChat-based PBL teaching method combined with micro-classroom is beneficial to improve students'knowledge of contrast-enhanced gastrointestinal ultrasound imaging,and is worth being popularized and applied in clinical teaching.