Speedup OS-EM image reconstruction by PC graphics card technologies for quantitative SPECT with varying focal-length fan-beam collimation

Zigang Wang; Guoping Han; Tianfang Li; Zhengrong Liang

doi:10.1109/TNS.2005.858231

Speedup OS-EM image reconstruction by PC graphics card technologies for quantitative SPECT with varying focal-length fan-beam collimation

Zigang Wang
, Guoping Han
, Tianfang Li
, Zhengrong Liang

IEEE
Stony Brook University
Computer Associates, Inc
Stanford University

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

24 Scopus citations

Abstract

In this paper, we present a new hardware acceleration method to speedup the ordered-subsets expectation-maximization (OS-EM) algorithm for quantitative single photon emission computed tomography (SPECT) image reconstruction with varying focal-length fan-beam (VFF) collimation. By utilizing the geometrical symmetry of VFF point-spread function (PSF), compensation for object-specific attenuation and system-specific PSF are accelerated using currently available PC video/graphics card technologies. A tenfold acceleration of quantitative SPECT reconstruction is achieved.

Original language	English
Pages (from-to)	1274-1280
Number of pages	7
Journal	IEEE Transactions on Nuclear Science
Volume	52
Issue number	5 I
DOIs	https://doi.org/10.1109/TNS.2005.858231
State	Published - Oct 2005

Keywords

Ordered-subsets expectation-maximization (OS-EM) reconstruction
PC hardware-based acceleration
Single photon emission computed tomography (SPECT)
Varying focal-length fan-beam collimation

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10.1109/TNS.2005.858231

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abstract = "In this paper, we present a new hardware acceleration method to speedup the ordered-subsets expectation-maximization (OS-EM) algorithm for quantitative single photon emission computed tomography (SPECT) image reconstruction with varying focal-length fan-beam (VFF) collimation. By utilizing the geometrical symmetry of VFF point-spread function (PSF), compensation for object-specific attenuation and system-specific PSF are accelerated using currently available PC video/graphics card technologies. A tenfold acceleration of quantitative SPECT reconstruction is achieved.",

keywords = "Ordered-subsets expectation-maximization (OS-EM) reconstruction, PC hardware-based acceleration, Single photon emission computed tomography (SPECT), Varying focal-length fan-beam collimation",

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year = "2005",

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AU - Liang, Zhengrong

PY - 2005/10

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KW - Single photon emission computed tomography (SPECT)

KW - Varying focal-length fan-beam collimation

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JF - IEEE Transactions on Nuclear Science

IS - 5 I

ER -

Speedup OS-EM image reconstruction by PC graphics card technologies for quantitative SPECT with varying focal-length fan-beam collimation

Abstract

Keywords

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