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

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Bibtex

@article{60c9a4cfe1f74342bf89150c6f33170e,
title = "Quantitative SPECT by attenuation correction of the projection set using transmission data: evaluation of a method",
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.",
keywords = "Attenuation correction, Build-up, Quantitative SPECT, Transmission measurement",
author = "Hel{\'e}n Almquist and John Palmer and Michael Ljungberg and Per Wollmer and Sven-Erik Strand and Bj{\"o}rn Jonson",
year = "1990",
doi = "10.1007/BF00998154",
language = "English",
volume = "16",
pages = "587--594",
journal = "European Journal of Nuclear Medicine and Molecular Imaging",
issn = "1619-7070",
publisher = "Springer",
number = "8-10",

}