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Title: System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid

Abstract

A system and method is disclosed for radiation dose calculation within sub-volumes of a particle transport grid. In a first step of the method voxel volumes enclosing a first portion of the target mass are received. A second step in the method defines dosel volumes which enclose a second portion of the target mass and overlap the first portion. A third step in the method calculates common volumes between the dosel volumes and the voxel volumes. A fourth step in the method identifies locations in the target mass of energy deposits. And, a fifth step in the method calculates radiation doses received by the target mass within the dosel volumes. A common volume calculation module inputs voxel volumes enclosing a first portion of the target mass, inputs voxel mass densities corresponding to a density of the target mass within each of the voxel volumes, defines dosel volumes which enclose a second portion of the target mass and overlap the first portion, and calculates common volumes between the dosel volumes and the voxel volumes. A dosel mass module, multiplies the common volumes by corresponding voxel mass densities to obtain incremental dosel masses, and adds the incremental dosel masses corresponding to themore » dosel volumes to obtain dosel masses. A radiation transport module identifies locations in the target mass of energy deposits. And, a dose calculation module, coupled to the common volume calculation module and the radiation transport module, for calculating radiation doses received by the target mass within the dosel volumes.

Inventors:
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [1];  [4];  [5]
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  1. Livermore, CA
  2. (Livermore, CA)
  3. Tracy, CA
  4. Los Alamos, NM
  5. San Leandro, CA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
873384
Patent Number(s):
6148272
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61N - ELECTROTHERAPY
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; radiation; dose; calculation; sub-volumes; monte; carlo; based; particle; transport; grid; disclosed; step; voxel; volumes; enclosing; portion; target; mass; received; defines; dosel; enclose; overlap; third; calculates; common; fourth; identifies; locations; energy; deposits; fifth; doses; volume; module; inputs; densities; corresponding; density; multiplies; obtain; incremental; masses; adds; coupled; calculating; third step; particle transport; radiation dose; monte carlo; radiation transport; dose calculation; method identifies; transport grid; /702/250/

Citation Formats

Bergstrom, Paul M, Daly, Thomas P, Moses, Edward I, Patterson, Jr., Ralph W., Schach von Wittenau, Alexis E, Garrett, Dewey N, House, Ronald K, Hartmann-Siantar, Christine L, Cox, Lawrence J, and Fujino, Donald H. System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid. United States: N. p., 2000. Web.
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Bergstrom, Paul M, Daly, Thomas P, Moses, Edward I, Patterson, Jr., Ralph W., Schach von Wittenau, Alexis E, Garrett, Dewey N, House, Ronald K, Hartmann-Siantar, Christine L, Cox, Lawrence J, & Fujino, Donald H. System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid. United States.
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Bergstrom, Paul M, Daly, Thomas P, Moses, Edward I, Patterson, Jr., Ralph W., Schach von Wittenau, Alexis E, Garrett, Dewey N, House, Ronald K, Hartmann-Siantar, Christine L, Cox, Lawrence J, and Fujino, Donald H. Sat . "System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid". United States. https://www.osti.gov/servlets/purl/873384.
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@article{osti_873384,
title = {System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid},
author = {Bergstrom, Paul M and Daly, Thomas P and Moses, Edward I and Patterson, Jr., Ralph W. and Schach von Wittenau, Alexis E and Garrett, Dewey N and House, Ronald K and Hartmann-Siantar, Christine L and Cox, Lawrence J and Fujino, Donald H},
abstractNote = {A system and method is disclosed for radiation dose calculation within sub-volumes of a particle transport grid. In a first step of the method voxel volumes enclosing a first portion of the target mass are received. A second step in the method defines dosel volumes which enclose a second portion of the target mass and overlap the first portion. A third step in the method calculates common volumes between the dosel volumes and the voxel volumes. A fourth step in the method identifies locations in the target mass of energy deposits. And, a fifth step in the method calculates radiation doses received by the target mass within the dosel volumes. A common volume calculation module inputs voxel volumes enclosing a first portion of the target mass, inputs voxel mass densities corresponding to a density of the target mass within each of the voxel volumes, defines dosel volumes which enclose a second portion of the target mass and overlap the first portion, and calculates common volumes between the dosel volumes and the voxel volumes. A dosel mass module, multiplies the common volumes by corresponding voxel mass densities to obtain incremental dosel masses, and adds the incremental dosel masses corresponding to the dosel volumes to obtain dosel masses. A radiation transport module identifies locations in the target mass of energy deposits. And, a dose calculation module, coupled to the common volume calculation module and the radiation transport module, for calculating radiation doses received by the target mass within the dosel volumes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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Works referenced in this record:

Surgical-planning support system for stereotactic endoscopy
conference, June 1993

A new method for photon transport in Monte Carlo simulation
journal, January 1999

High resolution anthropomorphic phantom for Monte Carlo analysis of internal radiation sources
conference, January 1990

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