In positron emission tomography (PET) and single photon emission tomography (SPECT),
attenuation correction is necessary for quantitative reconstruction of the tracer distribution. …

Positron emission tomographs (PETs) are currently almost exclusively designed as hybrid
systems. The current standard is the PET/CT combination, while prototype PET/MRI systems …

This study simulates a multi-pinhole single-photon emission computed tomography (SPECT)
system using the Monte Carlo method, and investigates different multi-pinhole designs for …

Objective. Using Monte-Carlo simulations, we evaluated the physical performance of a
hypothetical state-of-the-art clinical PET scanner with adaptive axial field-of-view (AFOV) based …

The point spread function (PSF) of a pinhole collimator plays an important role in determining
the resolution and characterizing the sensitivity of the accepted photons from a given point …

In positron emission tomography (PET) and single photon emission tomography (SPECT),
attenuation correction is necessary for quantitative reconstruction of the tracer distribution. …

We have recently derived an analytic method of image reconstruction for the rotating slant-hole
(RSH) SPECT scanner for cardiac imaging. The method assumes that the emission …

263 Objectives The new Siemens Biograph mMR whole-body MR-PET uses the simultaneously
acquired MR images for PET attenuation correction. As with most CT/MR generated mu-…

Multi-pinhole collimators are often used to obtain the detection sensitivity necessary for small
animal SPECT with submillimeter spatial resolution. However, in comparison to pinhole …

Up to recently, accounting for missing data in PET reconstruction has been used to rescue (remove
artifacts and restore quantitation on) studies when a few block detectors were out of …