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Robot-Assisted Ocular Tumour Radiotherapy Positioning and Tracking System
Xu Wang1, Dequan Shi1, Kundong Wang1,2,3
1School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
Summary
A novel eye positioning and tracking system enhances ocular proton therapy safety. This system precisely guides patient gaze, reducing eye movement for accurate radiation delivery.
Area of Science:
- Ophthalmology
- Radiation Oncology
- Medical Engineering
Background:
- Precise dose position distribution is critical for effective ocular proton therapy.
- Patient eye movement can compromise treatment accuracy.
Purpose of the Study:
- To develop and evaluate a non-invasive eye positioning and tracking system (EPTS) for ocular proton therapy.
- To enhance dose accuracy and patient safety by minimizing eye movement.
Main Methods:
- A novel system utilizing turntables and a robotic arm-mounted camera for gaze guidance and eye tracking.
- Real-time remote control of the system for precise positioning.
Main Results:
- The robotic arm achieved an accuracy of 0.18 mm (SD 0.25 mm).
- The turntables demonstrated an accuracy of 0.01° (SD 0.02°).
- The EPTS confirmed real-time remote control with high precision and repeatability.
Conclusions:
- The developed eye positioning and tracking system is suitable for ocular proton therapy.
- The system is expected to improve the safety and efficiency of ocular proton therapy treatments.
