VR is widely used in procedural medical training, but many simulators prioritize realism over formative feedback. We developed a gamified VR simulator for ultrasound-guided peripheral IV catheter insertion, using aligned visual and auditory feedback such as progress indicators, guidance, and rewards. In studies with novices (N=24) and clinicians (N=12), gamification reduced task time, improved usability, and lowered workload. Qualitative results showed clearer goals and greater confidence for novices, and improved pacing for experts. Overall, gamification can provide effective formative feedback in VR medical training.

翻译：虚拟现实（VR）广泛应用于程序性医学训练，但许多模拟器更注重真实感而非形成性反馈。我们开发了一套面向超声引导外周静脉导管插入的游憩化VR模拟器，通过轨迹指示器、引导提示和奖励机制等视觉与听觉同步反馈实现训练。在初学者（N=24）和临床医生（N=12）的研究中，游憩化设计缩短了任务完成时间，提升了可用性并降低了工作负荷。定性结果表明，游憩化帮助初学者明确目标、增强信心，同时优化了专家的操作节奏。综上，游憩化反馈机制可为VR医学训练中的形成性评估提供有效途径。