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[A surgical navigation system based on C-arm fluoroscopy images].

Liwei Qian1, Shijun Yan, Qing Xia

  • 1School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China.

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi
|December 2, 2009
PubMed
Summary

This study developed a surgical navigation system using C-arm X-rays and a calibration target. The system enhances surgical precision and reduces radiation exposure by guiding operations with virtual instrument projections.

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Area of Science:

  • Medical Imaging
  • Surgical Navigation
  • Image Processing

Context:

  • Developing advanced surgical navigation systems is crucial for improving operative precision.
  • Minimizing radiation exposure during surgical procedures is a significant clinical challenge.

Purpose:

  • To develop and evaluate a novel surgical navigation system utilizing C-arm X-ray imaging.
  • To establish a robust method for C-arm calibration and X-ray image distortion correction.
  • To enable real-time tracking and virtual projection of surgical instruments during operations.

Summary:

  • A surgical navigation system was developed using C-arm X-ray imaging and a calibration target.
  • The system employs an algorithm to establish coordinate system relationships and corrects X-ray image distortion.

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  • Virtual projections of optically tracked surgical instruments are superimposed onto preoperative X-ray images for guidance.

    • Impact:

    • The system facilitates less frequent C-arm usage, thereby reducing patient X-ray radiation exposure.
    • Cadaveric spine specimen experiments and error analysis confirm the clinical feasibility of the developed navigation system.
    • Enhanced surgical accuracy and safety through real-time instrument guidance.