用游戏化XR模拟器训练新生儿4D超声心动图操作
EchoSim4D: A Proof-of-Concept Gamified XR Echocardiography Training Simulator for Neonates using 4D Ultrasound Volume
- 基于Unity的4D超声体数据实时重建与可视化
- 低配设备可运行，支持真实探头动作捕捉
- 适合医学生和新手医生练习新生儿心脏超声
新生儿超声心动图对早期发现先天性心脏病至关重要，4D超声在3D基础上增加时间维度，可实时呈现心脏动态，提升诊断能力。然而，当前缺乏支持4D超声体数据可视化且具备游戏化交互的训练模拟器。本文提出EchoSim4D，一个基于XR的模拟系统，采用创新的Unity渲染管线，实现4D体数据实时重建，并优化为可在低性能设备上运行的版本。系统集成带传感器的仿真婴儿模型与自定义3D打印探头（含6自由度传感器），精准复现新生儿超声操作中的探头移动。在由领域专家指导的后研究生阶段医学生（0-5年经验）验证中，该系统表现出高视觉保真度与良好教学效果。结果表明，4D可视化技术在新生儿超声培训中具有显著应用潜力。
原文摘要 · Abstract (English)
Neonatal echocardiography is vital for early detection of heart anomalies in newborns, enabling timely, non-invasive interventions where 4D ultrasound, adds the dimension of time to 3D imaging, enhances diagnostic capabilities by visualizing real-time heart dynamics. However, training for 4D neonatal echocardiography is limited by the lack of simulators that support 4D Ultrasound volume visualization within gamified environments. This paper introduces EchoSim4D, an XR-based simulator leveraging novel pipeline for visualizing 4D volume data in Unity, incorporating real-time volume reconstruction, and a preloaded version optimized for low-end systems. EchoSim4D integrates a sensor-equipped manikin and a custom 3D-printed transducer with a 6-DOF sensor, replicating the precise probe maneuvers necessary for neonatal echocardiography. In a validation study with postgraduate medical students (0-5 years of experience), supervised by a domain expert, EchoSim4D demonstrated high visual fidelity and training efficacy. Findings suggest that 4D visualization techniques hold significant potential for advancing medical training in neonatal echocardiography.
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