The problem of attenuation correction (AC) for quantitative positron emission tomography
(PET) had been considered solved to a large extent after the commercial availability of …

Dynamic positron emission tomography (PET) can monitor spatiotemporal distribution of
radiotracer in vivo. The spatiotemporal information can be used to estimate parametric …

Dose reduction in computed tomography (CT) is essential for decreasing radiation risk in
clinical applications. Iterative reconstruction algorithms are one of the most promising way to …

Although diagnostic medical imaging provides enormous benefits in the early detection and
accuracy diagnosis of various diseases, there are growing concerns on the potential side …

This paper describes a statistical image reconstruction method for X-ray computed
tomography (CT) that is based on a physical model that accounts for the polyenergetic X-ray …

Standard formulations of image/signal deconvolution under wavelet-based
priors/regularizers lead to very high-dimensional optimization problems involving the …

The ordered subsets EM (OSEM) algorithm has enjoyed considerable interest for emission
image reconstruction due to its acceleration of the original EM algorithm and ease of …

Quantile regression is an increasingly popular method for estimating the quantiles of a
distribution conditional on the values of covariates. Regression quantiles are robust against …

Spectral computed tomography (CT) provides information on material characterization and
quantification because of its ability to separate different basis materials. Dual-energy (DE) …

Recent applications of model-based iterative reconstruction (MBIR) algorithms to multislice
helical CT reconstructions have shown that MBIR can greatly improve image quality by …