Radiation Treatment Alignment Using 3D Body Data and Tomographic Images
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Solution Overview
Problem
Current radiation treatment systems face challenges in accurately targeting affected regions while minimizing patient load and preventing irradiation device collisions, as existing methods require multiple image captures and struggle to incorporate posture changes during treatment planning.
Innovation Solution
A treatment assist system that generates three-dimensional body data and tomographic images, aligns them for precise treatment planning, and outputs instructions to ensure accurate and efficient radiation delivery, reducing patient load and preventing device collisions by using a control section to combine and compare data for optimal posture alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple radiation irradiations are performed to capture images for positioning, then positioning accuracy is improved, but patient load increases
Solution Approach 1:
The patent combines three-dimensional body data (surface information) with tomographic images (internal structure information) into integrated positioning data. This merging allows simultaneous utilization of both surface and internal anatomical features for positioning, achieving accurate targeting without requiring multiple separate radiation irradiations for different imaging modalities.
Solution Approach 2:
The system performs preliminary alignment between three-dimensional body data and tomographic images before treatment planning. By pre-registering and integrating these datasets with appropriate coordinate transformations, the system establishes a unified positioning framework in advance, eliminating the need for repeated irradiations during the treatment process.
2Productivity
If the patient body is moved closer to the irradiation device to increase irradiation efficiency, then treatment efficiency is improved, but collision risk between patient body and irradiation device increases
Solution Approach 1:
The patent incorporates three-dimensional spatial information from body surface measurement into the treatment planning system. By adding this dimensional data to the traditional two-dimensional tomographic images, the system creates a comprehensive three-dimensional model that enables accurate positioning and collision assessment in all spatial dimensions, allowing safe movement of the patient body closer to the irradiation device.
Solution Approach 2:
The system uses integrated three-dimensional body data and tomographic images to provide feedback on patient positioning and body contour information. This feedback mechanism allows real-time monitoring of the patient's anatomical features relative to the irradiation device, enabling dynamic adjustment of treatment parameters and positioning to prevent collisions while maintaining irradiation efficiency.
Data Source
AI summary
A system that assists in treatment includes circuitry configured to generate three-dimensional body data of a patient using data obtained from a three-dimensional measurement unit, obtain a tomographic image of the patient from a body tomographic measurement apparatus, execute an examination assist process, which aligns the three-dimensional body data with the tomographic image, execute a treatment plan assist process, which make a treatment plan that specifies a posture of the patient when treatment is performed using the tomographic image and the three-dimensional body data that are aligned with each other, and execute a treatment assist process, which outputs a treatment instruction based on the posture specified in the treatment plan.