This review focuses on positron emission tomography (PET) imaging algorithms and traces
the evolution of PET image reconstruction methods. First, we provide an overview of …

PET is an in vivo imaging device that allows the assessment of various functional and
biochemical processes occurring in the living bodies. In medicine, it is widely used for the …

Artificial intelligence (AI) is entering medical imaging, mainly enhancing image
reconstruction. Nevertheless, improvements throughout the entire processing, from signal …

Objective. Modern PET scanners offer precise TOF information, improving the SNR of the
reconstructed images. Timing calibrations are performed to reduce the worsening effects of …

Direct positron emission imaging (dPEI), which does not require a mathematical
reconstruction step, is a next-generation molecular imaging modality. To maximize the …

Silicon photomultipliers (SiPMs), consisting of 2D single‐photon avalanche diode (SPAD)
arrays, have been widely used in many applications. In a SiPM, trench structures surround …

Background Designing positron emission tomography (PET) scanners involves several
significant challenges. These include the precise measurement of the time of arrival of …

Background The renewed interest in BGO scintillators for TOF-PET is driven by the improved
Cherenkov photon detection with new blue-sensitive SiPMs. However, the slower …

Currently, a key metric for assessing the performance of time-of-flight positron emission
tomography (TOF-PET) detectors is the Coincidence Time Resolution (CTR). In this study …

Bismuth germanate (BGO) has been receiving attention again because it is a potential
scintillator for future time-of-flight positron emission tomography. Owing to its optical …