虚拟现实技术与线上案例混合式教学在航空航天医学实践教学中的应用  

Application of virtual reality technology(VR)and online case teaching in aerospace medicine practice courses

作　　者：王文岚 李娅 李文斌 张馨 韩佩君 暴军香 WANG Wen-lan;LI Ya;LI Wen-bin;ZHANG Xin;HAN Pei-jun;BAO Jun-xiang(Department of Aerospace Hygiene,Air Force Medical University,Xi’an 710032,Shaanxi,China)

机构地区：[1]空军军医大学航空航天医学系航空航天卫生学教研室,陕西西安710032

出　　处：《心脏杂志》2023年第5期580-584,共5页Chinese Heart Journal

摘　　要：目的为解决航空航天医学实践教学部分内容操作危险性和地面不可模拟性的问题,为学员提供真实学习场景,提高航空航天医学实践教学的高效性和学员的参与度。方法建设“高压氧治疗高空减压病的原理”VR课件和线上课件,将参加本次授课的29名学员按照学号分常规理论+高压氧舱见习组和VR+线上案例组。常规理论+高压氧舱见习组为传统授课,由教员讲授高空减压病的基本知识后,前往高压氧舱见习,了解高压氧治疗高空减压病的原理,下课前完成堂测;VR+线上案例组采用“虚实结合”的课程实践教学模式,学员在学校XR沉浸式教学馆,在教员的组织下,完成线上案例及VR高压氧治疗高空减压病原理的学习,并以CAVE屏的形式360度呈现高空减压病发生时血管内气泡形成气体栓子堵塞血管、与血液成分发生反应的过程,在线上完成知识点测试。结果运用VR+线上案例混合式教学的学员15个堂测知识点中9个知识点得分率显著高于常规理论+高压氧舱见习组(P<0.05);VR+线上案例组堂测最终平均分显著高于理论+高压氧舱见习组(P<0.05)。结论虚拟现实技术(VR)与线上案例混合式教学实现航空航天医学实践教学交互性强、直观性好、趣味性高等特点,可有效解决航空航天医学实践教学传统课堂高空减压病地面模拟有难度、高压氧舱操作有危险的特殊问题。AIM To find solutions to certain operational risks and difficulty of simulating on the ground in practice courses and provide students with real aerospace special environment and improve the efficiency and participation of students in practical teaching of aerospace medicine.METHODS VR and online courseware of“The Mechanism of Hyperbaric Oxygen Therapy for Altitude Decompression Sickness”was constructed and 29 students were divided into conventional theory+hyperbaric oxygen chamber trainee group and VR+online case group according to their student ID numbers.Students in conventional theory+hyperbaric oxygen Chamber trainee group were taught by the traditional way:after the lecture of the basic knowledge of hyperbaric oxygen,the students went to the hyperbaric oxygen chamber for internship to understand the mechanism of hyperbaric oxygen treatment for altitude decompression sickness and in-class test was completed before the end of class.Students in VR+online case group adopted the course practice teaching mode of“virtual and real combination”.Students completed the online case and used VR to learn the mechanism of hyperbaric oxygen therapy for altitude decompression sickness in the XR immersive teaching library.We used CAVE screen to present the process of blood bubbles in forming gas emboli to block blood vessels and reacting with blood components during the occurrence of altitude decompression sickness and the test was completed online.RESULTS The score rates of 9 knowledge points in 15 test knowledge points of students in VR+online group were significantly higher than those of students in conventional theory+hyperbaric oxygen chamber trainee group.Meanwhile,the mean score for tests in VR+online group was significantly higher than that in conventional theory+hyperbaric oxygen chamber trainee group(P<0.05).CONCLUSION The combination of virtual reality technology(VR)and online case teaching has the characteristics of strong interaction,good visualization and high interest in the practical teaching of aeros

关 键 词：航空航天医学 虚拟仿真实验 实践教学模式 高空减压病 高压氧治疗 

分 类 号：G641[文化科学—高等教育学]