Radiation Therapy Plan Dose Conversion Across Modes
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Solution Overview
Problem
Existing radiation therapy planning methods struggle to generate effective plans for patients treated with different radiation therapy modes, leading to inadequate dose distribution and potential harm to normal tissues.
Innovation Solution
A method for generating a radiation therapy plan involves acquiring a first plan in one mode, performing dose conversion to obtain an effective dose field, and using this field as a basic dose to generate a second plan in a different mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a radiation therapy plan is generated for one radiation therapy mode, then the plan is optimized for that specific mode, but it cannot be directly applied to generate plans for different radiation therapy modes
Solution Approach 1:
The patent transforms the radiation therapy plan by changing dose parameters through dose conversion. The system converts the dose distribution from one radiation therapy mode to another mode's dose distribution characteristics, enabling the plan to be adapted across different radiation therapy modes while maintaining treatment effectiveness
Solution Approach 2:
The patent creates a transformed copy of the original radiation therapy plan that is adapted for different modes. By generating a converted dose field that replicates the therapeutic effect in the target region while adjusting for mode-specific characteristics, the system enables plan reuse across multiple radiation therapy modes
2Adaptability or versatility
If dose conversion is performed to enable cross-mode plan generation, then adaptability improves, but calculation time and processing complexity increase
Solution Approach 1:
The system performs dose conversion calculations in advance to generate converted dose fields that can be stored and reused. By pre-processing the dose conversion for different radiation therapy modes, the system reduces real-time calculation requirements when generating plans for multiple modes
Solution Approach 2:
The radiation therapy planning system automatically performs dose conversion and plan transformation without requiring manual intervention for each mode. The system self-adapts the plan by applying conversion algorithms that automatically adjust dose distributions for different radiation therapy modes
3Manufacturing precision
If manual evaluation and adjustment of dose fields is performed, then plan accuracy improves, but time consumption and operational complexity increase
Solution Approach 1:
The system implements automated feedback mechanisms that evaluate the converted dose field against prescription conditions and automatically adjust parameters. The feedback loop compares the converted dose distribution with target criteria and refines the plan without requiring manual evaluation, maintaining accuracy while improving efficiency
Solution Approach 2:
The patent replaces manual mechanical evaluation and adjustment processes with automated computational algorithms. The system uses computer-based dose conversion and evaluation algorithms to substitute for manual physician review and adjustment, maintaining dosimetric accuracy while dramatically reducing time consumption
Data Source
AI summary
A method for generating a radiation therapy plan is provided. The method includes acquiring a first radiation therapy plan for an object that is to be treated with radiation therapy in a first radiation therapy mode; in response to a dose conversion operation on the first radiation therapy plan, acquiring a first effective dose field obtained by dose conversion of the first radiation therapy plan, the first effective dose field being used to evaluate effect of radiation therapy based on the first radiation therapy plan on different radiation volumes in the object; and generating a second radiation therapy plan for the object in a second radiation therapy mode using the first effective dose field as a basic dose field.