Spatial resolution properties of penalized-likelihood image reconstruction: space-invariant tomographs

JA Fessler, WL Rogers - IEEE Transactions on Image …, 1996 - ieeexplore.ieee.org
This paper examines the spatial resolution properties of penalized-likelihood image reconstruction
methods by analyzing the local impulse response. The analysis shows that standard …

[PDF][PDF] Imaging the primate adrenal medulla with [123I] and [131I] meta-iodobenzylguanidine: concise communication

…, LE Brown, MC Tobes, WL Rogers… - Journal of Nuclear …, 1981 - Soc Nuclear Med
MATERIALS AND METHODS Synthesis of radioiodinated p-IBG and m-IBG. The synthesis
and determination of radiochemical purity of the radiolabeled compounds used in this study …

[PDF][PDF] SPECT dual-energy-window Compton correction: scatter multiplier required for quantification

…, S Buchbinder, NH Clinthorne, WL Rogers… - Journal of Nuclear …, 1990 - Soc Nuclear Med
SPECT Dual-Energy-Window Compton Correction: Scatter Multiplier Required for
Quantification Page 1 events which should be removed by a scattering com pensation …

Preconditioning methods for improved convergence rates in iterative reconstructions

…, TS Pan, PC Chiao, WL Rogers… - IEEE transactions on …, 1993 - ieeexplore.ieee.org
Because of the characteristics of the tomographic inversion problem, iterative reconstruction
techniques often suffer from poor convergence rates-especially at high spatial frequencies. …

[PDF][PDF] SPECT Compton-scattering correction by analysis of energy spectra

KF Koral, X Wang, WL Rogers… - Journal of nuclear …, 1988 - Soc Nuclear Med
MATERIALS AND METhODS Measurement and Analysis of Spatial Resolution A
measurement of system spatial resolution for a OE

Regularized emission image reconstruction using imperfect side information

…, NH Clinthorne, WL Rogers - IEEE Transactions on …, 1992 - ieeexplore.ieee.org
A spatially variant penalized-likelihood method for tomographic image reconstruction based
on a weighted Gibbs penalty was investigated. The penalty weights are determined from …

3D image reconstruction for a Compton SPECT camera model

AC Sauve, AO Hero, WL Rogers… - … on Nuclear Science, 1999 - ieeexplore.ieee.org
Proposes a 3D image reconstruction algorithm for a 3D Compton camera being developed
at the University of Michigan. The authors present a mathematical model of the transition …

[PDF][PDF] Simultaneous transmission-emission thallium-201 cardiac SPECT: effect of attenuation correction on myocardial tracer distribution

…, JA Fessler, RJ Ackermann, WL Rogers… - Journal of Nuclear …, 1995 - Soc Nuclear Med
FBPto1. 01±0.07. Basalattenuationappearedproperlycorn pensatedas the peakbasal-to-apicalslice
activitygradientalong the posterior-inferiorwallchangedfrom1. 15 ±0.12 forFBPto …

[PDF][PDF] Digital tomographic imaging with time-modulated pseudorandom coded aperture and Anger camera

KF Koral, WL Rogers, GF Knoll - Journal of nuclear medicine, 1975 - Soc Nuclear Med
The University of Michigan, Ann Arbor, Michigan stem from the fact that the point response
function for a stationary code depends on a spatial integral over the recorded data. Both the …

Statistical performance evaluation and comparison of a Compton medical imaging system and a collimated Anger camera for higher energy photon imaging

L Han, WL Rogers, SS Huh… - Physics in Medicine & …, 2008 - iopscience.iop.org
In radionuclide treatment, tumor cells are primarily destroyed by charged particles emitted
by the compound while associated higher energy photons are used to image the tumor in …