Object description by a maximum rectangular method in Monte Carlo simulation

Author

Suganuma, Ryuichi ; Ogawa, Koichi

Author_Institution

Dept. of Electron. Inf., Hosei Univ., Tokyo, Japan

Volume

2

fYear

1999

fDate

1999

Firstpage

980

Abstract

The photon transportation simulation which uses a Monte Carlo method is an indispensable technique for examining the scatter and absorption correction methods in SPECT and PET. The authors have developed a method for object description in maximum regions (maximum rectangular regions: MRRs) to speed up photon transportation simulation, and compared the calculation time with that of conventional object description methods. In this paper details of the expansion of MRR to three dimensions are given. Moreover, the effectiveness the proposed method was compared with the VB and octree method in the results of simulations of two kinds of phantoms

Keywords

Monte Carlo methods; gamma-ray absorption; gamma-ray scattering; medical image processing; positron emission tomography; single photon emission computed tomography; PET; SPECT; absorption correction; calculation time; maximum rectangular regions; maximum regions; medical diagnostic imaging; nuclear medicine; object description; octree method; photon transportation simulation; scatter correction; Attenuation; Educational institutions; Electromagnetic scattering; Frequency; Imaging phantoms; Informatics; Particle scattering; Positron emission tomography; Road transportation; Single photon emission computed tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.845826

Filename

845826