(I) in whichthe followingmethodsof attenuationcompensation were compared:(a) filtered
back-projection;(b) exponential ray-sum combining method;(c) geometric-mean corrector; …

(I) in whichthe followingmethodsof attenuationcompensation were compared:(a) filtered
back-projection;(b) exponential ray-sum combining method;(c) geometric-mean corrector; …

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 …

(I) in whichthe followingmethodsof attenuationcompensation were compared:(a) filtered
back-projection;(b) exponential ray-sum combining method;(c) geometric-mean corrector; …

Iterative reconstruction algorithms with markedly different convergence rates have been
proposed in single-photon emission computed tomography (SPECT). Several new iterative …

An iterative procedure to correct for attenuation has been developed for a multidetector,
single-photon emission tomographic scanner. The difference between measured and …

A penalized weighted least squares reconstruction algorithm is described that
simultaneously estimates activity and attenuation distributions from emission sinogram data …

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 …

A computer based simulation program was developed to assess the usefulness of various
attenuation correction algorithms and data acquisition methods in single photon emission …

Although over the last few years, removal of superimposed activity sections in transverse
section reconstruction has led to qualitatively improved contrast and lesion localisation,(1, 2 …