Radiotherapy Motion Synchronization for Faster Precise Delivery
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Solution Overview
Problem
Contemporary radiotherapy systems face challenges in optimizing the synchronous motions of multiple components, such as a gantry, multi-leaf collimator, and table, which leads to prolonged treatment times and increased radiation exposure for patients.
Innovation Solution
A method and system that determine optimized motion parameters for each component based on sets of positions corresponding to control nodes, calculating velocities and durations to ensure synchronized movement and reduced treatment time, utilizing a processor and storage device to implement these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple components move synchronously during radiation delivery, then treatment precision is improved, but treatment time is prolonged
Solution Approach 1:
The system pre-calculates optimized motion parameters for each component before treatment begins. The processor determines optimal velocities, accelerations, and timing for the gantry, collimator, and table based on the treatment plan, allowing components to move efficiently while maintaining synchronization and precision throughout the radiation delivery process.
2Manufacturing precision
If multiple components move synchronously during radiation delivery, then treatment precision is improved, but radiation exposure is increased
Solution Approach 1:
The system uses the radiation delivery process itself to drive the motion optimization. By synchronizing component movements with the actual radiation delivery timing, the system ensures that components are in the correct positions only when radiation is being delivered, eliminating unnecessary movement time and reducing overall radiation exposure while maintaining treatment precision.
3Productivity
If motion parameters are optimized for each component, then treatment efficiency is improved, but system complexity is increased
Solution Approach 1:
The processor serves multiple functions: it calculates motion parameters for the gantry, collimator, and table; it synchronizes their movements; and it coordinates radiation delivery timing. This centralized multi-functional approach allows complex optimization of multiple components without proportionally increasing system complexity, as a single processing unit handles all optimization tasks.
Data Source
AI summary
Systems and methods for synchronous motion optimization of device of moving components are provided. The methods may include obtaining positions of multiple components of a system; determining, based on the positions, a velocity of each component at each position; determining, based on the velocity of each component, a minimum duration for each component to traverse each segment between two sequential positions; determining, based on the minimum duration for each component to traverse each segment, an optimized duration corresponding to each segment; and determining, based on the optimized duration corresponding to each segment, motion parameters of each component in each segment, the motion parameters of each component in each segment forming the control plan of the system.