METHODS Theoretical LSF for/3+ i.@ nge. The positron emitting radionuclides of 64Cu,
11C, and 150 were chosen since they emit positrons with a range of energies including most …

Developments in positron emission tomography (PET) technology have resulted in systems
with finer detector elements designed to further improve spatial resolution. However, there is …

The influence of the positron distance of flight in various human tissues on the spatial
resolution in positron emission tomography (PET) was assessed for positrons from carbon …

We have theoretically and experimentally investigated the extent to which homogeneous
magnetic fields up to 7 Tesla reduce the spatial distance positrons travel before annihilation …

Purpose The increasing interest and availability of non-standard positron-emitting
radionuclides has heightened the relevance of radionuclide choice in the development and …

Positron range impairs resolution in PET imaging, especially for high-energy emitters and for
small-animal PET. De-blurring in image reconstruction is possible if the blurring distribution …

BACKGROUND: One of the limiting factors in achieving the best spatial resolution in
positron emission tomography (PET), especially in small-animal PET, is the positron range …

Employing a diffusion approximation for monoenergetic positrons and well-known
theoretical and empirical relations we model positron range distributions and show them to …

The ECAT was designed and developed as a positron imaging system capable of providing
high contrast, high resolution, quantitative images in two-dimensional(2-D) and tomographic …

Methodology for PET system modeling using image-space techniques in the expectation
maximization (EM) algorithm is presented. The approach, applicable to both list-mode data …