Results 21 to 30 of about 61,140 (175)

Multiparametric Cardiac 18F-FDG PET: Pilot Comparison of FDG Delivery Rate with 82Rb Myocardial Blood Flow [PDF]

open access: yes, 2020
Myocardial blood flow (MBF) and flow reserve are usually quantified in the clinic with positron emission tomography (PET) using a perfusion-specific radiotracer (e.g. 82Rbchloride). However, the clinical accessibility of existing perfusion tracers remains limited.
arxiv   +1 more source

18F-fluorodeoxyglucose positron emission tomography/computed tomography in predicting overall survival of oral cavity squamous cell carcinoma: Ongoing controversy

open access: yesWorld Journal of Nuclear Medicine, 2020
We aimed to retrospectively determine if initial staging 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) can predict overall survival (OS) in oral cavity squamous cell carcinoma (OCSCC), which is currently a ...
Stephen Scott   +6 more
doaj   +1 more source

Prescribing cholinesterase inhibitors in mild cognitive impairment—Observations from the Alzheimer's Disease Neuroimaging Initiative

open access: yesAlzheimer’s & Dementia: Translational Research & Clinical Interventions, 2021
Introduction Analyses of off‐label use of acetylcholinesterase inhibitors (AChEIs) in mild cognitive impairment (MCI) has produced mixed results. Post hoc analyses of observational cohorts, such as the Alzheimer's Disease Neuroimaging Initiative (ADNI ...
Eddie Stage   +8 more
doaj   +1 more source

Hepatic Positron Emission Tomography: Applications in Metabolism, Haemodynamics and Cancer

open access: yesMetabolites, 2022
Evaluating in vivo the metabolic rates of the human liver has been a challenge due to its unique perfusion system. Positron emission tomography (PET) represents the current gold standard for assessing non-invasively tissue metabolic rates in vivo.
Miikka-Juhani Honka   +3 more
doaj   +1 more source

A resource-efficient deep learning framework for low-dose brain PET image reconstruction and analysis [PDF]

open access: yesarXiv, 2022
18F-fluorodeoxyglucose (18F-FDG) Positron Emission Tomography (PET) imaging usually needs a full-dose radioactive tracer to obtain satisfactory diagnostic results, which raises concerns about the potential health risks of radiation exposure, especially for pediatric patients.
arxiv  

PET Imaging in Cardiac Sarcoidosis: A Narrative Review with Focus on Novel PET Tracers

open access: yesPharmaceuticals, 2021
Sarcoidosis is a multi-system inflammatory disease characterized by the development of inflammation and noncaseating granulomas that can involve nearly every organ system, with a predilection for the pulmonary system.
Petar Saric   +3 more
doaj   +1 more source

Self-Supervised Learning for Physiologically-Based Pharmacokinetic Modeling in Dynamic PET [PDF]

open access: yesarXiv, 2023
Dynamic positron emission tomography imaging (dPET) provides temporally resolved images of a tracer enabling a quantitative measure of physiological processes. Voxel-wise physiologically-based pharmacokinetic (PBPK) modeling of the time activity curves (TAC) can provide relevant diagnostic information for clinical workflow.
arxiv  

Histometabolic Tumor Imaging of Hypoxia in Oral Cancer: Clinicopathological Correlation for Prediction of an Aggressive Phenotype

open access: yesFrontiers in Oncology, 2020
IntroductionFluorodeoxyglucose-positron emission tomography (FDG-PET) is a widely used imaging tool for oral squamous cell carcinoma (OSCC). Preliminary studies indicate that quantification of tumor metabolic uptake may correlate with tumor hypoxia and ...
Grégoire B. Morand   +9 more
doaj   +1 more source

Autopet Challenge 2023: nnUNet-based whole-body 3D PET-CT Tumour Segmentation [PDF]

open access: yesarXiv, 2023
Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) combined with Computed Tomography (CT) scans are critical in oncology to the identification of solid tumours and the monitoring of their progression. However, precise and consistent lesion segmentation remains challenging, as manual segmentation is time-consuming and subject to intra- and inter ...
arxiv  

Prevalence and malignancy risk of focal colorectal incidental uptake detected by 18F-FDG-PET or PET/CT: a meta-analysis

open access: yesRadiology and Oncology, 2014
Background. The aim of the study was to meta-analyze published data about prevalence and malignancy risk of focal colorectal incidentalomas (FCIs) detected by Fluorine-18-Fluorodeoxyglucose positron emission tomography or positron emission tomography ...
Treglia Giorgio   +5 more
doaj   +1 more source

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