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Quantitative SPECT by attenuation correction of the projection set using transmission data: evaluation of a method

Almquist, Helén; Palmer, John LU ; Ljungberg, Michael LU ; Wollmer, Per LU ; Strand, Sven-Erik LU and Jonson, Björn LU (1990) In European Journal Of Nuclear Medicine 16(8-10). p.587-594
Abstract
A method for measuring attenuation coefficients in single-photon emission tomography (SPECT) is described and evaluated, together with a method for attenuation correction using these measured attenuation coefficients. Build-up, caused by scattered photons, is corrected for by a simple substitution in the algorithms. Transmission studies are performed with a 99mTc- or 57Co flood source, and emission phantom studies with 99mTc line sources. The method is evaluated with variable but well-defined phantoms. The result is accurate attenuation coefficients for different densities, dimensions and geometries, and an accuracy of corrected emission activities of better than +/- 10% in most cases. The present limitations of the method for attenuation... (More)
A method for measuring attenuation coefficients in single-photon emission tomography (SPECT) is described and evaluated, together with a method for attenuation correction using these measured attenuation coefficients. Build-up, caused by scattered photons, is corrected for by a simple substitution in the algorithms. Transmission studies are performed with a 99mTc- or 57Co flood source, and emission phantom studies with 99mTc line sources. The method is evaluated with variable but well-defined phantoms. The result is accurate attenuation coefficients for different densities, dimensions and geometries, and an accuracy of corrected emission activities of better than +/- 10% in most cases. The present limitations of the method for attenuation correction are discussed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Attenuation correction, Build-up, Quantitative SPECT, Transmission measurement
in
European Journal Of Nuclear Medicine
volume
16
issue
8-10
pages
587 - 594
publisher
Springer
external identifiers
  • pmid:2384099
  • scopus:0025161413
ISSN
1432-105X
DOI
10.1007/BF00998154
language
English
LU publication?
yes
id
60c9a4cf-e1f7-4342-bf89-150c6f33170e (old id 1105268)
date added to LUP
2008-08-05 11:58:11
date last changed
2017-01-01 04:59:25
@article{60c9a4cf-e1f7-4342-bf89-150c6f33170e,
  abstract     = {A method for measuring attenuation coefficients in single-photon emission tomography (SPECT) is described and evaluated, together with a method for attenuation correction using these measured attenuation coefficients. Build-up, caused by scattered photons, is corrected for by a simple substitution in the algorithms. Transmission studies are performed with a 99mTc- or 57Co flood source, and emission phantom studies with 99mTc line sources. The method is evaluated with variable but well-defined phantoms. The result is accurate attenuation coefficients for different densities, dimensions and geometries, and an accuracy of corrected emission activities of better than +/- 10% in most cases. The present limitations of the method for attenuation correction are discussed.},
  author       = {Almquist, Helén and Palmer, John and Ljungberg, Michael and Wollmer, Per and Strand, Sven-Erik and Jonson, Björn},
  issn         = {1432-105X},
  keyword      = {Attenuation correction,Build-up,Quantitative SPECT,Transmission measurement},
  language     = {eng},
  number       = {8-10},
  pages        = {587--594},
  publisher    = {Springer},
  series       = {European Journal Of Nuclear Medicine},
  title        = {Quantitative SPECT by attenuation correction of the projection set using transmission data: evaluation of a method},
  url          = {http://dx.doi.org/10.1007/BF00998154},
  volume       = {16},
  year         = {1990},
}