EVALUATION OF THE USE OF SIEVES FOR PRODUCING ESTIMATES OF RADIOACTIVITY DISTRIBUTIONS WITH THE EM ALGORITHM FOR PET.

Michael I. Miller; Donald L. Snyder; Stephen M. Moore

EVALUATION OF THE USE OF SIEVES FOR PRODUCING ESTIMATES OF RADIOACTIVITY DISTRIBUTIONS WITH THE EM ALGORITHM FOR PET.

Michael I. Miller
, Donald L. Snyder
, Stephen M. Moore

Research output: Contribution to journal › Article › peer-review

Abstract

Reconstructions of the spatial distributions of radio activity produced using maximum-likelihood estimation in positron emission tomography exhibit noise-like artifacts in the form of sharp peaks and valleys located randomly throughout the image field. These become increasingly apparent with each stage of iteration when the expectation-maximization algorithm is used to produce the maximum-likelihood estimate numerically. A preliminary evaluation of the use of Grenander's method of sieves to reduce these undesirable artifacts is presented.

Original language	English (US)
Journal	IEEE Transactions on Nuclear Science
Volume	NS-33
Issue number	1
State	Published - Feb 1985
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

Cite this

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title = "EVALUATION OF THE USE OF SIEVES FOR PRODUCING ESTIMATES OF RADIOACTIVITY DISTRIBUTIONS WITH THE EM ALGORITHM FOR PET.",

abstract = "Reconstructions of the spatial distributions of radio activity produced using maximum-likelihood estimation in positron emission tomography exhibit noise-like artifacts in the form of sharp peaks and valleys located randomly throughout the image field. These become increasingly apparent with each stage of iteration when the expectation-maximization algorithm is used to produce the maximum-likelihood estimate numerically. A preliminary evaluation of the use of Grenander's method of sieves to reduce these undesirable artifacts is presented.",

author = "Miller, \{Michael I.\} and Snyder, \{Donald L.\} and Moore, \{Stephen M.\}",

year = "1985",

month = feb,

language = "English (US)",

volume = "NS-33",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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AU - Miller, Michael I.

AU - Snyder, Donald L.

AU - Moore, Stephen M.

PY - 1985/2

Y1 - 1985/2

N2 - Reconstructions of the spatial distributions of radio activity produced using maximum-likelihood estimation in positron emission tomography exhibit noise-like artifacts in the form of sharp peaks and valleys located randomly throughout the image field. These become increasingly apparent with each stage of iteration when the expectation-maximization algorithm is used to produce the maximum-likelihood estimate numerically. A preliminary evaluation of the use of Grenander's method of sieves to reduce these undesirable artifacts is presented.

AB - Reconstructions of the spatial distributions of radio activity produced using maximum-likelihood estimation in positron emission tomography exhibit noise-like artifacts in the form of sharp peaks and valleys located randomly throughout the image field. These become increasingly apparent with each stage of iteration when the expectation-maximization algorithm is used to produce the maximum-likelihood estimate numerically. A preliminary evaluation of the use of Grenander's method of sieves to reduce these undesirable artifacts is presented.

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M3 - Article

AN - SCOPUS:0022015043

SN - 0018-9499

VL - NS-33

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

IS - 1

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EVALUATION OF THE USE OF SIEVES FOR PRODUCING ESTIMATES OF RADIOACTIVITY DISTRIBUTIONS WITH THE EM ALGORITHM FOR PET.

Abstract

ASJC Scopus subject areas

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