PMID: 615896Jan 1, 1977Paper

Noise due to photon counting statistics in computed X-ray tomography

Journal of Computer Assisted Tomography
D A CheslerNorbert J Pelc

Abstract

A general expression is derived for the noise due to photon counting statistics in computed X-ray tomography. The variance is inversely proportional to the cube of the resolution distance. For scanners using a water box, the noise in the reconstructed image depends inversely on the number of detected primary photons, summed over all angles, that have passed through a resolution element. Predictions of this formula agree well with the results of computer simulations. It is shown how this formula can be used to determine such parameters as required X-ray flux, detector counting rate, and dose, with special emphasis on tradeoffs between these parameters and resolution. It is also shown that to determine the X-ray attenuation coefficient of a resolution element to a given precision, the number of photons required by computed X-ray tomography is close to a theoretical limit.

Citations

Jan 29, 2003·Journal of Cellular Biochemistry. Supplement·Erik L Ritman
Dec 1, 1982·Journal of Medical Systems·R A RobbE L Ritman
Dec 1, 1978·Annals of Biomedical Engineering·H RusinekT Reich
Jul 12, 2003·Seminars in Roentgenology·Philip F Judy
Jan 1, 1996·Progress in Biophysics and Molecular Biology·U Bonse, F Busch
May 1, 1997·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·I G Zubal, G Wisniewski
Feb 17, 2006·Physics in Medicine and Biology·Shu-Ju TuLingyun Chen
Apr 22, 2008·Physics in Medicine and Biology·Adam Wunderlich, Frédéric Noo
May 8, 2001·Medical Physics·M EndoK Yoshida
May 30, 2002·Medical Physics·Biao Chen, Ruola Ning
Dec 6, 2003·Medical Physics·N L FordD W Holdsworth
Dec 24, 2005·Medical Physics·Taly Gilat SchmidtNorbert J Pelc
Jul 29, 2006·Medical Physics·Taly Gilat SchmidtNorbert J Pelc
Oct 7, 2006·Medical Physics·Bruce R WhitingJeffrey F Williamson
Nov 8, 2007·Medical Physics·Baojun LiJiang Hsieh
Feb 26, 2008·Medical Physics·Klaus J EngelGünter Zeitler
Dec 15, 2005·Proceedings of the American Thoracic Society·Erik L Ritman
Mar 19, 2009·Medical Physics·Jongduk Baek, Norbert J Pelc
Feb 24, 2010·Medical Physics·Cheng-Ying Chou, Mark A Anastasio
Aug 14, 2009·Medical Physics·Taly Gilat Schmidt
Nov 26, 2010·Medical Physics·Dimitrios Lazos, Jeffrey F Williamson
Feb 11, 2014·Medical Physics·Scott S HsiehNorbert J Pelc
Mar 8, 2013·Medical Physics·Scott S Hsieh, Norbert J Pelc
Jan 30, 2009·Medical Physics·Kai YangJohn M Boone
Jun 1, 2014·Medical Physics·Scott S Hsieh, Norbert J Pelc
Jan 1, 1981·Neuroradiology·R RuggieroA Calabrò
Dec 1, 1983·The British Journal of Radiology·S WebbR Inamdar
Oct 25, 2001·The British Journal of Radiology·E T WongP C Lau
May 1, 2012·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Mohammad Reza AyHabib Zaidi
Sep 30, 2014·IEEE Transactions on Medical Imaging·Scott Hsieh, Norbert Pelc
Mar 20, 2010·IEEE Transactions on Medical Imaging·Adam Wunderlich, Frederic Noo
Jan 1, 1991·IEEE Transactions on Medical Imaging·K Sauer, B Liu
Jan 1, 1982·IEEE Transactions on Medical Imaging·A Macovski
Jan 1, 1985·IEEE Transactions on Medical Imaging·M R PalmerB D Pate
Jan 1, 1989·IEEE Transactions on Medical Imaging·D R Haynor, S D Woods

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