Results 1 to 10 of about 246,431 (195)
Physics in Medicine and Biology, 2006 The developments in positron emission tomography (PET) are reviewed with an emphasis on instrumentation for clinical PET imaging. After a brief summary of positron imaging before the advent of computed tomography, various improvements are highlighted including the move from PET scanners with septa to fully 3D scanners, changes in the preferred ...
G. Muehllehner, J. Karp
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Usefulness of respiratory-gated PET acquisition during delayed 18F-FDG PET/CT scanning for patients with liver metastases [PDF]
Asia Oceania Journal of Nuclear Medicine and Biology, 2021 Objective(s): To assess respiratory-gated (RG) positron emission tomography (PET) acquisition for patients with liver metastases during delayed PET/computed tomography (CT) scanning with fluorine-18-fluorodeoxyglucose (18F-FDG).Methods: Nineteen patients
Shota Watanabe +6 more
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Many-body theory of positron binding to polyatomic molecules [PDF]
Nature, 2021 Positron binding to molecules is key to extremely enhanced positron annihilation and positron-based molecular spectroscopy1. Although positron binding energies have been measured for about 90 polyatomic molecules1–6, an accurate ab initio theoretical ...
J. Hofierka +4 more
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Radiochemistry for positron emission tomography
Nature Communications, 2023 Positron emission tomography (PET) constitutes a functional imaging technique that is harnessed to probe biological processes in vivo. PET imaging has been used to diagnose and monitor the progression of diseases, as well as to facilitate drug ...
Jian Rong +4 more
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JAMA Neurology, 2022 This cross-sectional study of 2 observational cohorts investigates if phosphorylated tau biomarkers are more associated with the presence of cerebral β-amyloidosis or tau neurofibrillary tangle aggregation.
J. Therriault +32 more
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The Vortex Surface in a Three-Body Quantum System
Atoms, 2023 Vortices are structures known in our daily lives and observed in a wide variety of systems, from cosmic to microscopic scales. Relatively recent studies showed that vortices could also appear in simple quantum systems.
Tamara A. Guarda +2 more
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Preliminary study on characteristic X-ray yields of the thick-targe impacted by low-energy positron
He jishu, 2021 BackgroundX-ray emission from solid samples exposed to positron beams in the low-energy region is the basis of some material analysis techniques.PurposeThis study aims to measure the K-shell characteristic X-ray yields of Ti (Z=22) target collided by 10 ...
TIAN Lixia +3 more
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Few Body Effects in the Electron and Positron Impact Ionization of Atoms
Atoms, 2021 Triple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS ...
R.I. Campeanu, Colm T. Whelan
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JAMA Neurology, 2020 This diagnostic study explores whether positron emission tomography with [18F]flortaucipir can detect tau pathology and Alzheimer disease neuropathologic changes in terminally ill adults with or without dementia.
A. Fleisher +29 more
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Erdheim-Chester Disease: Utility of 18F-FDG Positron Emission Tomography [PDF]
Journal of Clinical and Diagnostic Research, 2018 Erdheim-Chester Disease (ECD) is a rare non Langerhans cell histiocytosis of unknown origin with multiorgan involvement. We report a case of a man who presented to us with haematuria, asthenia, fever, nausea and malleolar oedema.
Angelina Cistaro +4 more
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