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Augmented reality (AR) has great potential for use in healthcareapplications, especially remote medical training and supervision. In thispaper, we analyze the usage of an AR communication system to teach a medicalprocedure, the placement of a central venous catheter (CVC) under ultrasoundguidance. 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 differsfrom teaching through videoconferencing-based communication. Our resultsinclude a detailed medical training steps analysis in which we compare howverbal and visual communication differs between video and AR training. Weidentify procedural steps in which medical experts give visual instructionsutilizing AR components. We examine the change in AR usage and interaction overtime and recognize patterns between users. Moreover, AR design recommendationsare given based on post-training interviews.

Evaluating Augmented Reality Communication: How Can We Teach Procedural Skill in AR?