NDLI: Optimization of patient geometry based on CT data in GEANT4 for medical application

Content Provider	IEEE Xplore Digital Library
Author	Aso, T. Kimura, A. Yamashita, T. Sasaki, T.
Copyright Year	2007
Description	Author affiliation: Toyama Nat. Coll. of Maritime Technol., Toyama (Aso, T.)
Abstract	The GEANT4 Monte Carlo code provides many powerful functions for conducting particle transport simulations with great reliability and flexibility. GEANT4 has been extending the application fields for not only the high energy physics but also medical physics. In radiation therapy, patient data are usually given in DICOM format and have to be imported into a simulation as geometry. For this purpose, a DICOM interface has been developed for retrieving CT data from DICOM files and converting it into suitable format for making geometry. The GEANT4 defines a patient geometry as a series of voxels. The "parameterized volumes" in GEANT4 is capable to deal with such voxelized geometry. Alternatively, more efficient functionality, "nested parameterization volumes" has been introduced since GEANT4 version 8.1. The performances of these functionalities have been studied in terms of computational efficiency about a patient geometry of a series of voxels with GEANT4 version 8.2 and 9.0. The functionality of the DICOM interface and the result of the performance study have been reported in this paper. The dramatic improvement of memory consumption has been confirmed by adopting the "nested parameterization volumes" instead of normal "parameterization volumes".
Starting Page	2576
Ending Page	2580
File Size	211535
Page Count	5
File Format	PDF
ISBN	9781424409228
ISSN	10957863
DOI	10.1109/NSSMIC.2007.4436676
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Medical services Biomedical equipment DICOM Medical simulation Monte Carlo methods Physics Biomedical applications of radiation Solid modeling Information retrieval GEANT4 Monte Carlo Dose calculation Radiotherapy
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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