A method for evaluating radiation model data in particle beam radiation applications

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This patent describes a method for evaluating and improving the accuracy of radiation models used in particle beam radiation therapy, particularly in proton beam therapy for cancer treatment. The core idea is to verify calculated proton ranges in patient tissues by applying a high-energy 'probe' pencil beam and measuring its actual range after passing through the patient, then comparing this with the model's predictions. This enables real-time verification and adjustment of the treatment plan for greater precision and safety.

Use CasesContent extracted from patent full text and abstract with AI.

• Pre-treatment verification and calibration of proton beam therapy plans in cancer treatment centers.
• In-vivo measurement and adjustment of proton therapy delivery for tumors located in areas with complex tissue structures.
• Quality assurance checks in medical facilities providing particle therapy to ensure consistent treatment accuracy.
• Research and optimization of tissue characterization and imaging to improve radiation model predictions.
• Improving patient safety and treatment outcomes in pediatric and high-precision radiotherapy cases.

BenefitsContent extracted from patent full text and abstract with AI.

• Allows in-vivo verification of proton beam range, increasing treatment accuracy.
• Reduces the risk of mis-targeting healthy tissue, thus minimizing side effects.
• Enables adjustment and calibration of radiation models based on real-time patient data, leading to personalized therapy.
• Enhances confidence in CT/MR-based treatment planning by cross-validating with physical measurements.
• Supports improved quality assurance and safety protocols in advanced radiotherapy environments.

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Patent Abstract

A method for evaluating radiation model data in particle beam radiation applications, in particular in proton beam therapy of a determined target volume of malign tissue within a creature, is disclosed, comprising the steps of: a) gaining diagnostic data for a determined target volume to be irradiated; b) calculating a particle range in the predetermined target volume based on the diagnostic data for the determined target volume; c) designing a radiation model comprising particle beam characteristics based on the calculated particle range and optionally on a calculated dose depth distribution; d) applying a single pencil beam shot to the determined target volume at an elevated beam energy as compared to the particle beam characteristics of the radiation model; e) measuring the beam range of the single pencil beam shot downstream of the determined target volume; and f) comparing the measured beam range to a reference beam range calculated on the basis of the radiation model.