3D打印技术在临床教学中的应用和效果

Application and effect of 3D printing technology in clinical teaching

目的以肝脏和肝癌模型为例,探讨3D打印结合PBL在肝胆外科住院医师规范化培训带教中的应用价值。方法选取2018年1月-2019年1月间在肝胆外科进行住院医师规范化培训的56名医师,以数表法随机将其分为观察组和对照组,每组28名。对照组采用传统PBL教学模式进行教学,观察组应用3D技术打印肝脏和肝癌整体模型以及相关的胆道、血管模型等,联合PBL教学模式进行带教,统计分析两组住院医师规范化培训医师出科理论考核成绩、CT/MRI图像阅读能力及对教学满意度等指标。结果观察组出科理论考核成绩明显高于对照组,其差异有统计学意义(t=4.165,P<0.01);观察组CT/MRI图像阅读成绩高于对照组,其差异有统计学意义(t=2.922;P<0.01);观察组学生对教学满意度明显高于对照组,其差异有统计学意义(χ^2=4.909,P=0.027)。结论3D打印结合PBL对肝胆外科住院医师规范化培训医师临床带教是一种有效的教学方式。

Objective To explore the application value of 3D printing combined with PBL in clinical teaching of hepatobiliary surgery residents’standardized training,taking the liver and liver cancer model as an example.Methods Fifty-six physicians who received residents’standardized training in hepatobiliary surgery from January 2018 to January 2019 were randomly divided into observation group and control group,28 in each group.The control group was taught by traditional PBL teaching mode,while the observation group was taught by using 3D technology to print the whole model of liver and liver cancer,and related biliary tract and blood vessel models,and combined with PBL teaching mode.The scores of theoretical examination,CT/MRI image reading ability and teaching satisfaction of the two groups were analyzed.Results The scores of theoretical examination in the observation group were significantly higher than those in the control group(t=4.165,P<0.01);the scores of CT/MRI image reading in the observation group were higher than those in the control group(t=2.922;P<0.01);the students’satisfaction with teaching in the observation group was significantly higher than that in the control group,and the difference was statistically significant(χ^2=4.909,P=0.027).Conclusion 3D printing combined with PBL is an effective teaching method for clinical teaching of hepatobiliary surgery residents’standardized training,and it is worth popularizing.