Augmented reality (AR) has great potential for use in healthcare applications, especially remote medical training and supervision. In this paper, we analyze the usage of an AR communication system to teach a medical procedure, the placement of a central venous catheter (CVC) under ultrasound guidance. We examine various AR communication and collaboration components, including gestural communication, volumetric information, annotations, augmented objects, and augmented screens. We compare how teaching in AR differs from teaching through videoconferencing-based communication. Our results include a detailed medical training steps analysis in which we compare how verbal and visual communication differs between video and AR training. We identify procedural steps in which medical experts give visual instructions utilizing AR components. We examine the change in AR usage and interaction over time and recognize patterns between users. Moreover, AR design recommendations are given based on post-training interviews.

翻译：增强现实（AR）在医疗保健领域具有巨大的应用潜力，尤其在远程医疗培训和监督方面。本文分析了一种AR通信系统在教授医疗程序（超声引导下中心静脉导管置入术）中的应用。我们研究了多种AR通信与协作组件，包括手势通信、体量信息、标注、增强对象及增强屏幕。对比了AR教学与基于视频会议通信的教学差异。研究结果包含详细的医疗培训步骤分析，其中比较了视频培训与AR培训中语言和视觉通信的差异。我们识别出医疗专家利用AR组件进行视觉指导的程序步骤，分析了AR使用与交互随时间的变化规律，并识别了用户间的模式。此外，基于培训后访谈提出了AR设计建议。