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Optical Surgical Navigation: A Promising Low-cost Alternative.

Darin Tsui, Mitsuhiro Jo, Bryan Nguyen

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 12, 2023
    PubMed
    Summary

    This study explores ArUco markers as a low-cost optical tracking solution for computer-assisted surgery. Findings show potential for accurate navigation despite environmental challenges, paving the way for wider adoption.

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    Area of Science:

    • Medical technology
    • Computer vision
    • Surgical navigation

    Background:

    • Current computer-assisted surgery relies on expensive infrared cameras.
    • Low-cost optical tracking offers an alternative but faces inconsistencies due to operating room conditions and patient anatomy.
    • Evaluating factors affecting tracking accuracy is crucial for reliable low-cost systems.

    Purpose of the Study:

    • To evaluate fiducial ArUco markers as a cost-effective alternative for optical tracking in computer-assisted surgery.
    • To assess the impact of environmental variables on ArUco marker tracking accuracy.
    • To develop and validate a ground truth testing platform for real-time positional measurement.

    Main Methods:

    • Designed a ground truth testing platform to measure real-time positional differences.
    • Investigated the effects of warping, line-of-sight obstruction, and operating room lighting on ArUco marker tracking.
    • Isolated and quantified modifications to the physical marker and X-Y platform environment.

    Main Results:

    • ArUco markers demonstrate potential as a low-cost solution for optical tracking in surgical navigation.
    • The study identified key environmental factors influencing marker tracking performance.
    • The developed testing platform enables precise evaluation of tracking accuracy.

    Conclusions:

    • The proposed navigation system using ArUco markers shows promise for computer-navigated surgery.
    • Further research will focus on image processing techniques to enhance optical marker tracking accuracy.
    • Low-cost optical tracking solutions can improve accessibility of advanced surgical technologies.