Modeling all orders of scatter in nuclear medicine

B. Gallas; H. H. Barrett

Modeling all orders of scatter in nuclear medicine

B. Gallas, H. H. Barrett

Medical Imaging

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

The distribution of photons is described by the integrodifferential Boltzmann equation. However, this equation is difficult to solve because of the scatter integral and the size of the problem when discretized. A method is presented that models all orders simultaneously using spherical harmonics to efficiently describe the directional dependence. The method also partitions the problem to take advantage of the fact that a scattering event results in an energy loss. Then, within a parallel computing paradigm, it is assumed that the source and the attenuation map of the medium are known, and an attempt is made to solve for the distribution. This distribution can then be used in any imaging system model to approximate experimental images.

Original language	English (US)
Title of host publication	IEEE Nuclear Science Symposium and Medical Imaging Conference
Publisher	IEEE
Pages	1964-1968
Number of pages	5
ISBN (Print)	0780350227
State	Published - 1999
Event	Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record - Toronto, Que, Can Duration: Nov 8 1998 → Nov 14 1998

Publication series

Name	IEEE Nuclear Science Symposium and Medical Imaging Conference
Volume	3

Other

Other	Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record
City	Toronto, Que, Can
Period	11/8/98 → 11/14/98

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

Cite this

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title = "Modeling all orders of scatter in nuclear medicine",

abstract = "The distribution of photons is described by the integrodifferential Boltzmann equation. However, this equation is difficult to solve because of the scatter integral and the size of the problem when discretized. A method is presented that models all orders simultaneously using spherical harmonics to efficiently describe the directional dependence. The method also partitions the problem to take advantage of the fact that a scattering event results in an energy loss. Then, within a parallel computing paradigm, it is assumed that the source and the attenuation map of the medium are known, and an attempt is made to solve for the distribution. This distribution can then be used in any imaging system model to approximate experimental images.",

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AU - Barrett, H. H.

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N2 - The distribution of photons is described by the integrodifferential Boltzmann equation. However, this equation is difficult to solve because of the scatter integral and the size of the problem when discretized. A method is presented that models all orders simultaneously using spherical harmonics to efficiently describe the directional dependence. The method also partitions the problem to take advantage of the fact that a scattering event results in an energy loss. Then, within a parallel computing paradigm, it is assumed that the source and the attenuation map of the medium are known, and an attempt is made to solve for the distribution. This distribution can then be used in any imaging system model to approximate experimental images.

AB - The distribution of photons is described by the integrodifferential Boltzmann equation. However, this equation is difficult to solve because of the scatter integral and the size of the problem when discretized. A method is presented that models all orders simultaneously using spherical harmonics to efficiently describe the directional dependence. The method also partitions the problem to take advantage of the fact that a scattering event results in an energy loss. Then, within a parallel computing paradigm, it is assumed that the source and the attenuation map of the medium are known, and an attempt is made to solve for the distribution. This distribution can then be used in any imaging system model to approximate experimental images.

UR - http://www.scopus.com/inward/record.url?scp=0032596692&partnerID=8YFLogxK

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M3 - Conference contribution

SN - 0780350227

T3 - IEEE Nuclear Science Symposium and Medical Imaging Conference

SP - 1964

EP - 1968

BT - IEEE Nuclear Science Symposium and Medical Imaging Conference

PB - IEEE

T2 - Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record

Y2 - 8 November 1998 through 14 November 1998

ER -

Modeling all orders of scatter in nuclear medicine

Abstract

Publication series

Other

ASJC Scopus subject areas

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