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Content Provider | IEEE Xplore Digital Library |
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Author | Chizaki, M. Ogawa, K. |
Copyright Year | 2000 |
Description | Author affiliation: Coll. of Eng., Hosei Univ., Tokyo, Japan (Chizaki, M.) |
Abstract | Monte Carlo methods are becoming important in evaluating data correction methods in nuclear medicine. In the Monte Carlo methods, time-consuming calculations are required to determine the path length of a photon in an object that is composed of several media with complicated boundaries. Object modeling is therefore important for performing photon transport efficiently. The authors have proposed a new algorithm called the maximum rectangular region (MRR) method. The results of simulation showed that the calculation time in MRR was about from 30% to 50% of that in the conventional algorithm. But the disadvantage with this algorithm is that it takes too long a calculation time to decide MRR for each voxel. In this paper the authors propose a new method by using a genetic algorithm to decide the MRR for each voxel. The results showed that the calculation time could be reduced by 30% of the conventional algorithm. |
File Size | 421503 |
File Format | |
ISBN | 0780365038 |
ISSN | 10823654 |
DOI | 10.1109/NSSMIC.2000.949318 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-10-15 |
Publisher Place | France |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Single photon emission computed tomography Attenuation Nuclear electronics Biomedical informatics Educational institutions Nuclear medicine Medical simulation Genetic algorithms Electromagnetic scattering Particle scattering |
Content Type | Text |
Resource Type | Article |
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