Radiotherapy Dose Analysis System for 3D Delivery Verification
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Solution Overview
Problem
Current radiotherapy treatment plans rely primarily on physical dose parameters, which may not adequately account for biological impacts, limiting the effectiveness in targeting tumors while sparing surrounding tissue, and there is a need for improved analytic tools to manage both physical and biological parameters.
Innovation Solution
A radiotherapy dose analysis system comprising a delivery information extractor, a physics dose model engine, and a dose/dose rate comparison engine to determine and compare delivered and planned dose, dose rate, and position information in two or three dimensions, generating graphical representations for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If treatment plans are based on physical dose parameters only, then the treatment planning process is simple and straightforward, but the ability to account for biological impacts and optimize therapeutic effect is limited
Solution Approach 1:
The analysis system is divided into distinct functional modules: a delivery information extractor module that retrieves treatment delivery data, a physics dose model engine that calculates dose distributions, and a dose/dose rate comparison engine that performs analytical comparisons. This segmentation allows each module to specialize in specific tasks, improving overall reliability while managing complexity through modular architecture.
Solution Approach 2:
The patent introduces an intermediary analytical system that bridges the gap between physical dose parameters and biological effects. This intermediary layer processes physical dose data through physics dose models and compares delivered versus planned doses, translating physical measurements into biologically relevant information without requiring direct complex biological measurements.
2Measurement precision
If conventional treatment planning is used, then the planning process is straightforward, but the precision in visualizing and comparing delivered versus planned dose distribution is insufficient
Solution Approach 1:
The patent replaces conventional visual inspection and manual comparison methods with an automated computational system. The dose/dose rate comparison engine uses physics dose models and analytical comparisons to automatically evaluate delivered versus planned dose distributions, providing precise quantitative measurements instead of subjective visual assessments.
Solution Approach 2:
The system extends traditional two-dimensional dose visualization into three-dimensional analytical comparisons. The physics dose model engine and comparison engine operate in 3D space to evaluate dose distributions volumetrically, adding a spatial dimension to the analysis that enables more precise characterization of dose delivery accuracy.
3Manufacturing precision
If only physical dose parameters are monitored, then the treatment delivery process is simple to manage, but the ability to optimize tumor targeting and minimize tissue toxicity is compromised
Solution Approach 1:
The patent implements a feedback mechanism where the dose/dose rate comparison engine continuously compares delivered dose information against planned dose distributions. This feedback loop identifies deviations between intended and actual dose delivery, enabling real-time or post-treatment optimization of tumor targeting precision and surrounding tissue protection.
Solution Approach 2:
The system performs preliminary analytical comparisons by establishing expected dose distributions through physics dose models before actual treatment delivery. These pre-calculated reference distributions serve as benchmarks against which delivered doses are compared, enabling proactive identification and correction of delivery deviations.
Data Source
AI summary
Dose analysis radiotherapy systems and methods for determine delivered radiotherapy dose, dose rate, irradiation time and position information and planned radiotherapy dose, dose rate, irradiation time and position information. The dose analysis systems and methods further compare the as delivered dose, dose rate, irradiation time and position information to the planned dose, dose rate, irradiation time and position information to generate a graphical representation of one or more of the delivered dose, dose rate, irradiation time and position information versus planned dose, dose rate, irradiation time and position information.