Objective:To explore the application effect of the Eyesi surgical simulator in the teaching of cataract surgery for professional ophthalmology postgraduate students.Methods:The professional postgraduate students who w...Objective:To explore the application effect of the Eyesi surgical simulator in the teaching of cataract surgery for professional ophthalmology postgraduate students.Methods:The professional postgraduate students who were trained in the third year of ophthalmology at the First Affiliated Hospital of Xi’an Medical University were selected as the research objects.After passing the theoretical examination,they were randomly divided into the pig eyeball group,Eyesi group,and pig eye+Eyesi group,with 5 students in each group.The pig eyeball,Eyesi surgery simulator,and pig eye+Eyesi surgery simulator were used for microscopic technique operation and cataract surgery steps training,respectively.After the training,the overall training effects of the three groups of postgraduates were scored,and questionnaires were used to objectively evaluate the three training methods.Results:The scores of the students in the pig eye+Eyesi group were better than those in the Eyesi group,and the students in the Eyesi group were better than those in the pig eyeball group.Conclusion:The Eyesi surgical simulation training system can evaluate the microsurgical skills of professional masters and improve their surgical skills.This system is of great significance for the training of the cataract surgery skills of professional masters.展开更多
Background Atrial fibrillation(AF)is the most common sustained cardiac arrhythmia that can cause severe heart problems.Catheter ablation is one of the most ideal procedures for the treatment of AF.Physicians qualified...Background Atrial fibrillation(AF)is the most common sustained cardiac arrhythmia that can cause severe heart problems.Catheter ablation is one of the most ideal procedures for the treatment of AF.Physicians qualified to perform this procedure need to be highly skilled in manipulating the relevant surgical devices.This study proposes an interactive surgical simulator with high fidelity to facilitate efficient training and low-cost medical education.Methods We used a shared centerline model to simulate the interaction between multiple surgical devices.An improved adaptive deviation-feedback approach is proposed to accelerate the convergence of each iteration.The periodical beating of the human heart was also simulated in real time using the position-based dynamics(PBD)framework to achieve higher fidelity.We then present a novel method for handling the interaction between the devices and the beating heart mesh model.Experiments were conducted in a homemade simulator prototype to evaluate the robustness,performance,and flexibility of the proposed method.Preliminary evaluation of the simulator was performed by medical students,residents,and surgeons.Results The interaction between surgical devices,static vascular meshes,and beating heart mesh was stably simulated in a frame rate suitable for interaction.Conclusion Our simulator is capable of simulating the procedure of catheter ablation with high fidelity and provides immersive visual experiences and haptic feedback.展开更多
文摘Objective:To explore the application effect of the Eyesi surgical simulator in the teaching of cataract surgery for professional ophthalmology postgraduate students.Methods:The professional postgraduate students who were trained in the third year of ophthalmology at the First Affiliated Hospital of Xi’an Medical University were selected as the research objects.After passing the theoretical examination,they were randomly divided into the pig eyeball group,Eyesi group,and pig eye+Eyesi group,with 5 students in each group.The pig eyeball,Eyesi surgery simulator,and pig eye+Eyesi surgery simulator were used for microscopic technique operation and cataract surgery steps training,respectively.After the training,the overall training effects of the three groups of postgraduates were scored,and questionnaires were used to objectively evaluate the three training methods.Results:The scores of the students in the pig eye+Eyesi group were better than those in the Eyesi group,and the students in the Eyesi group were better than those in the pig eyeball group.Conclusion:The Eyesi surgical simulation training system can evaluate the microsurgical skills of professional masters and improve their surgical skills.This system is of great significance for the training of the cataract surgery skills of professional masters.
基金the National Natural Science Foundation of China(61672510)the Shenzhen Basic Research Program(JCYJ20180507182441903).
文摘Background Atrial fibrillation(AF)is the most common sustained cardiac arrhythmia that can cause severe heart problems.Catheter ablation is one of the most ideal procedures for the treatment of AF.Physicians qualified to perform this procedure need to be highly skilled in manipulating the relevant surgical devices.This study proposes an interactive surgical simulator with high fidelity to facilitate efficient training and low-cost medical education.Methods We used a shared centerline model to simulate the interaction between multiple surgical devices.An improved adaptive deviation-feedback approach is proposed to accelerate the convergence of each iteration.The periodical beating of the human heart was also simulated in real time using the position-based dynamics(PBD)framework to achieve higher fidelity.We then present a novel method for handling the interaction between the devices and the beating heart mesh model.Experiments were conducted in a homemade simulator prototype to evaluate the robustness,performance,and flexibility of the proposed method.Preliminary evaluation of the simulator was performed by medical students,residents,and surgeons.Results The interaction between surgical devices,static vascular meshes,and beating heart mesh was stably simulated in a frame rate suitable for interaction.Conclusion Our simulator is capable of simulating the procedure of catheter ablation with high fidelity and provides immersive visual experiences and haptic feedback.
