ArticleEJNMMI physics2022
High resolution detectors for whole-body PET scanners by using dual-ended readout.
Article in EJNMMI physics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 27 citations in OpenAlex.
- Recent advances in [Nuclear medicine and biology · 2026Review
- Molecular Imaging of Pancreatic Duct Adenocarcinoma Using [Molecular imaging and biology · 2026Article
- Flexible and Generic Framework for Complex Nuclear Medicine Scanners Using FreeCAD/GDML Workbench.Computer-aided design and applications · 2026Article
- Improved Edge Pixel Resolution in Modular PET Detectors with Partly Segmented Light Guides.Sensors (Basel, Switzerland) · 2025Article
- Dual-ended readout TOF-DOI PET detectors based on 3.2 mm and 1.6 mm pitch LYSO arrays.EJNMMI physics · 2025Article
- Implementation of Photonic Crystals into Davis LUT module for GATE simulation.IEEE transactions on radiation and plasma medical sciences · 2025Article
- Enhanced Timing Performance of Dual-Ended PET Detectors for Brain Imaging Using Dual-Finishing Crystal Approach.Sensors (Basel, Switzerland) · 2024Article
- PET detectors with depth-of-interaction and time-of-flight capabilities.Radiological physics and technology · 2024Review
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Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundMost current whole-body positron emission tomography (PET) scanners use detectors with high timing resolution to measure the time-of-flight of two 511 keV photons, improving the signal-to-noise ratio of PET images. However, almost all current whole-body PET scanners use detectors without depth-encoding capability; therefore, their spatial resolution can be affected by the parallax effect.
methodsIn this work, four depth-encoding detectors consisting of LYSO arrays with crystals of 2.98 × 2.98 × 20 mm
resultsThe four PET detectors provided good flood histograms in which all crystals could be clearly resolved, the crystal energy resolutions measured being 10.2, 12.1, 11.4 and 11.7% full width at half maximum (FWHM), at an average crystal depth of interaction (DOI) resolution of 3.5, 3.9, 2.7, and 3.0 mm, respectively. The depth dependence of the timing of each SiPM was measured and corrected, the timing of the two SiPMs being used as the timing of the dual-ended readout detector. The four detectors provided coincidence time resolutions of 180, 214, 239, and 263 ps, respectively.
conclusionsThe timing resolution of the dual-ended readout PET detector was approximately 20% better than that of the single-ended readout detector using the same LYSO array, SiPM array, and readout electronics. The detectors developed in this work used long crystals with small cross-sections and provided good flood histograms, DOI, energy, and timing resolutions, suggesting that they could be used to develop whole-body PET scanners with high sensitivity, uniform high spatial resolution, and high timing resolution.
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