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An Experimental Study of a 3D Bone Position Estimation System Based on Fluoroscopic Images
Yuichi Yoshii1, Yuta Iwahashi2, Satoshi Sashida2
1Department of Orthopedic Surgery, Tokyo Medical University Ibaraki Medical Center, Ami, Ibaraki 300-0398, Japan.
Diagnostics (Basel, Switzerland)
|September 23, 2022
Summary
A new 3D bone position estimation system accurately compares preoperative 3D planning images with intraoperative fluoroscopy. This system tracks positional changes, aiding real-time surgical guidance and improving accuracy in orthopedic procedures.
Area of Science:
- Medical Imaging
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Preoperative 3D planning and intraoperative fluoroscopy are crucial in orthopedic surgery.
- Accurate registration between 3D models and real-time imaging is essential for surgical precision.
Purpose of the Study:
- To evaluate the accuracy of a novel 3D bone position estimation system.
- To compare the accuracy of estimated 3D bone image positions against intraoperative fluoroscopic images.
Main Methods:
- Developed a 3D bone position estimation system linking 3D images to fluoroscopic image positions.
- Used four reference markers to track positional changes of a radius bone model.
- Calculated intra-class correlation coefficients and average positional differences between 3D and fluoroscopic images.
Main Results:
- High intra-class correlation coefficients (0.98-0.99) indicate excellent agreement between 3D and fluoroscopic images.
- Average positional differences ranged from 1.1 ± 0.7 mm to 2.4 ± 1.8 mm across different views.
- Anterior-posterior and posterior-anterior views showed higher accuracy than lateral views.
Conclusions:
- The developed system provides accurate real-time comparison of preoperative 3D and intraoperative fluoroscopy images.
- This technology can enhance surgical navigation and improve outcomes in orthopedic interventions.
- The system demonstrates potential for dynamic intraoperative adjustments based on preoperative plans.
