The Virtual Simulation Teaching System Of Ultrasonic Equipment Principle And Clinical Application

Medical ultrasonic equipment is an indispensable tool for diagnosis and treatment in daily life.If students want to have a deep understanding of medical ultrasound equipment,they need to master its structure,imaging principle,imaging characteristics and basic clinical applications.Because the knowledge about medical ultrasonic equipment covers a wide range,it is difficult to understand,so the traditional teaching method has certain limitations.The emergence of new ultrasonic teaching methods has achieved obvious results in improving the teaching quality,but most of them are limited to clinical application.With the promotion of the application of virtual reality(VR)technology in teaching,this paper proposes to apply VR technology to the teaching of ultrasonic equipment.According to the characteristics of ultrasound course,a virtual simulation teaching system with interactive functions has been developed by integrating the principle of ultrasonic equipment and clinical application.The specific contents are as follows:(1)the requirements analysis and separate modules: in the form of questionnaire survey,random undertake to the student research,understand the user requirements,determine the system main content,divided into seven modules: registered login,ultrasonic roaming and ultrasonic equipment structure,the classification of the ultrasonic diagnostic instrument,ultrasonic imaging and ultrasound interaction and assessment;According to the content of the system,the resource demand analysis is carried out to determine the required model resource requirements;According to the division of modules,the system functional requirements are analyzed to determine the specific functions to be realized in each module.Finally,some non-functional requirement analysis is added to the system.(2)System design and implementation: the overall architecture design and development environment of the system are introduced.Visual Studio 2017 is selected as the development platform and Unity3 D is selected as the engine.Firstly,model creation and import are carried out,followed by UI design,and then each function module is realized through VR key technologies such as collision detection and commonly used Unity3 D plug-in.Finally,the performance of the system is optimized.(3)System testing and preliminary evaluation: the system was packaged into Web GL and PC versions for users to use,and the packaged system was tested from three aspects of function,compatibility and ease of use.Finally,the teaching effect of the system was preliminarily analyzed.After testing,the virtual simulation teaching system of ultrasonic equipment principle and clinical application can run normally on different platforms,meet the needs,and achieve good teaching effects.