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About this paper
Mingxu Liu, Zixuan Liu, Ruchen Cai, Yu-Chen Ku, Suxi Gu, Amit Jain, Alejandro Martin-Gomez, Mehran Armand
X-GuideAR, an augmented reality framework, integrates DeepDRR previews and X-ray augmentation to guide fluoroscopically-assisted orthopedic screw placement, aiming to mitigate radiation exposure. Preliminary phantom studies showed a 62.3% reduction in X-ray usage and improved screw trajectory quality, allowing for placement of larger diameter screws with adequate bony containment, without significantly increasing surgical duration.
Key insights
- Combining realistic, fast DeepDRR previews with augmented reality can effectively reduce radiation exposure during the C-arm positioning (fluoro-hunting) phase of fluoroscopically-guided surgery.
- Real-time augmentation of acquired X-rays with projected virtual tool trajectories improves trajectory awareness and precision during screw placement, diminishing the need for additional intra-operative X-rays.
- An AR framework leveraging conventional fluoroscopy and pre-operative CT, rather than costly robotic or iCT systems, offers a practical and adoptable approach to enhance safety and efficiency in orthopedic procedures.
Summary by alphaXiv.
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