Quantitative SPECT by attenuation correction of the projection set using transmission data: evaluation of a method
(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:
https://lup.lub.lu.se/record/1105268
- author
- Almquist, Helén ; Palmer, John LU ; Ljungberg, Michael LU ; Wollmer, Per LU ; Strand, Sven-Erik LU and Jonson, Björn LU
- organization
- publishing date
- 1990
- 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
- 2016-04-01 12:15:58
- date last changed
- 2023-09-02 01:25:03
@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}},
keywords = {{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}},
doi = {{10.1007/BF00998154}},
volume = {{16}},
year = {{1990}},
}