发表机构
Johns Hopkins University; University of Arkansas（约翰霍普金斯大学; 阿肯色大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
研究针对骨科手术中“荧光镜搜索”增加辐射暴露的问题，提出X-GuideAR增强现实框架，通过合成X射线预览加速搜索、减少辐射，经初步研究，该框架在S2AI螺钉放置中减少X射线数量，提高螺钉直径安全性，助力更安全高效手术。
AI 中文摘要
在骨科手术中实现最佳螺钉放置需要在X射线下频繁进行对齐检查并获取多个解剖视图，这一过程会增加患者和手术团队的辐射暴露。本文介绍了X-GuideAR，这是一种用于识别最佳X射线视图的增强现实框架，旨在减少辐射暴露并确保准确的螺钉放置。以S2翼状髂骨（S2AI）螺钉放置为例，该系统通过生成合成X射线预览来加速荧光镜搜索，为视图获取和钻孔提供无辐射引导。初步研究表明，使用该系统可使X射线数量减少62.3%。术后评估显示，与传统工作流程相比，使用X-GuideAR的轨迹支持的平均安全螺钉直径更大，表明骨包容性得到改善，具有潜在的生物力学益处。X-GuideAR在减少辐射暴露和简化S2AI螺钉放置方面具有巨大潜力，为更安全、高效的手术提供了一个有前景的方向。
英文摘要
Achieving optimal screw placement for orthopedic surgeries requires frequent alignment checks and multiple anatomical views under X-ray -- a process known as "fluoro-hunting" that increases radiation exposure to patients and surgical teams. This work introduces X-GuideAR, an augmented reality (AR) framework for identifying optimal X-ray views, aimed at reducing radiation exposure while ensuring accurate screw placement. To exemplify the benefits of X-GuideAR, we focus on S2 alar-iliac (S2AI) screw placement. Our system provides radiation-free guidance for view acquisition and drilling by generating synthetic X-ray previews that accelerate fluoro-hunting. Once the required anatomical views are identified using these previews, a real X-ray is acquired, and the preview of the drilling trajectory is augmented onto it, facilitating precise screw placement with minimal additional radiation. A preliminary study involving eight S2AI trajectories performed by an expert spine surgeon demonstrated a 62.3% reduction in the number of X-rays. Post-procedure evaluations showed that trajectories done with X-GuideAR supported an average safe screw diameter of 12.95 mm compared to 5.9 mm under the conventional workflow, suggesting improved bony containment and potential biomechanical benefit. X-GuideAR shows great potential to reduce radiation exposure and streamline S2AI screw placement, offering a promising direction toward safer and more efficient surgeries.
