US 2020/0368552 A1 · METHOD, APPARATUS, AND SYSTEM FOR SIMULATING A PARTICLE TRANSPORT AND DETERMINING HUMAN DOSE IN A RADIOTHERAPY

Abstract

A method for simulating a particle transport may include recording transport paths of inputted particles and determining an uncertainty of each of lattice cells based on the transport paths of each batch of the inputted particles, a lattice cell being a qualified lattice cell if an uncertainty of the lattice cell does not exceed a first threshold; determining a standard-reaching rate of lattice cells in a region of interest (ROI), the ROI including at least one lattice cell, the standard-reaching rate of lattice cells in the ROI being equal to a ratio of the number of qualified lattice cells to a total number of lattice cells in the ROI; and if the standard-reaching rate of lattice cells in the ROI exceeds a second threshold, stopping inputting particles, and outputting the transport paths of the inputted particles.

Claims21

Dependent claims

1-16. (canceled)

A method for simulating a particle transport, the method comprising:

obtaining transport paths of at least a portion of simulated particles;
determining, based on the transport paths, an uncertainty of each of lattice cells in each of multiple regions of interest (ROIs), the uncertainty indicating whether a simulated particle undergoes a reaction in each of the lattice cells;
determining an evaluation result associated with the particle transport by evaluating, based on the uncertainty of each of the lattice cells, the particle transport in the lattice cells;
and
adjusting, based on the evaluation result, the particle transport to equalize global uncertainties of the multiple ROIs such that the global uncertainty of each of the multiple ROIs corresponding to the adjusted particle transport does not exceed a threshold.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/989,820Filed 10 Aug 2020

Priority

CN 201510152240.81 Apr 2015

Published

26 Nov 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A61N 5/1031
Treatment planning systems: using a specific method of dose optimization
G16H 20/40
ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient…:…
G16H 50/50
ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or…: for…
A61N 5/1042
X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy: with spatial modulation of the radiation beam within the treatment head

Method, apparatus, and system for simulating a particle transport and determining human dose in a radiotherapy

Life of this patent

Method, apparatus, and system for simulating a particle transport and determining human dose in a radiotherapy

Life of this patent

Abstract

Claims21