Attenuation correction and incomplete projection in single photon emission computed tomography

LT Chang - IEEE Transactions on Nuclear Science, 1979 - ieeexplore.ieee.org
Correction for internal γ-ray absorption is an important aspect in single photon emission
computed tomography. An algorithm has been developed to compensate for the effect of …

The use of filtering methods to compensate for constant attenuation in single-photon emission computed tomography

GT Gullberg, TF Budinger - IEEE Transactions on Biomedical …, 1981 - ieeexplore.ieee.org
A back projection of filtered projection (BKFIL) reconstruction algorithm is presented that is
applicable to single-photon emission computed tomography (ECT) in the presence of a …

A comparison of attenuation correction methods for quantitative single photon emission computed tomography

S Webb, MA Flower, RJ Ott… - Physics in Medicine & …, 1983 - iopscience.iop.org
Transverse section tomograms of experimental phantoms and patients have been obtained
using a GE 400T camera and a filtered back-projection reconstruction technique. These …

Rapidly converging iterative reconstruction algorithms in single-photon emission computed tomography.

JW Wallis, TR Miller - Journal of nuclear medicine: official …, 1993 - europepmc.org
Iterative reconstruction algorithms with markedly different convergence rates have been
proposed in single-photon emission computed tomography (SPECT). Several new iterative …

Implementation and evaluation of an analytical solution to the photon attenuation and nonstationary resolution reconstruction problem in SPECT

EJ Soares, CL Byrne, SJ Glick… - … on Nuclear Science, 1993 - ieeexplore.ieee.org
The implementation and evaluation of an analytical solution to the photon attenuation and
nonstationary resolution reconstruction problem in single photon emission computed …

[PDF][PDF] Attenuation compensation in single-photon emission tomography: a comparative evaluation

MH Lewis, JT Willerson, SE Lewis… - Journal of Nuclear …, 1982 - Soc Nuclear Med
A. The simulation model. A general cross-sectional model of the human thorax was
designed, including chest outline, lungs, heart, sternum, ribs, and vertebrae. Three types of …

Attenuation correction using SPECT emission data only

D Gourion, D Noll, P Gantet, A Celler… - IEEE transactions on …, 2002 - ieeexplore.ieee.org
A major step toward quantitative single photon emission computerized tomography (SPECT)
imaging may be achieved if attenuation, scatter, and blurring effects are accounted for in the …

Nonuniform attenuation correction using simultaneous transmission and emission converging tomography

CH Tung, GT Gullberg, GL Zeng… - IEEE transactions on …, 1992 - ieeexplore.ieee.org
Photon attenuation in cardiac single photon emission computed tomography (SPECT) is a
major factor contributing to the quantitative inaccuracy and the decrease in specificity of …

Weighted backprojection implemented with a non-uniform attenuation map for improved SPECT quantitation

SH Manglos, RJ Jaszczak… - IEEE Transactions on …, 1988 - ieeexplore.ieee.org
A method is developed to improve quantitation in single-photon-emission computed
tomography (SPECT) imaging by using an attenuation compensation method that includes …

Fan-beam reconstruction algorithm for a spatially varying focal length collimator

GL Zeng, GT Gullberg, RJ Jaszczak… - IEEE transactions on …, 1993 - ieeexplore.ieee.org
Fan-beam collimators are used in single-photon-emission computed tomography (SPECT)
to improve the sensitivity for imaging of small organs. The disadvantage of fan-beam …