Results 11 to 20 of about 604,820 (405)

Radiomics Analysis of Contrast-Enhanced CT Predicts Survival in Clear Cell Renal Cell Carcinoma

open access: yesFrontiers in Oncology, 2021
PurposeTo develop and validate the radiomics nomogram that combines clinical factors and radiomics features to estimate overall survival (OS) in patients with clear cell renal cell carcinoma (ccRCC), and assess the incremental value of radiomics for OS ...
Lei Yan   +10 more
doaj   +1 more source

Influence of Multiple Animal Scanning on Image Quality for the Sedecal SuperArgus2R Preclinical PET Scanner

open access: yesFrontiers in Physics, 2021
Background: Increased throughput in small animal preclinical studies using positron emission tomography leads to reduced costs and improved efficiency of experimental design, however the presence of multiple off-centre subjects, as opposed to a single ...
Nikos Efthimiou   +10 more
doaj   +1 more source

Image reconstruction method for dual-isotope positron emission tomography [PDF]

open access: yesJournal of Instrumentation, Volume 16, January 2021, P01035, 2021
We developed a positron emission tomography (PET) system for multiple-isotope imaging. Our PET system, named multiple-isotope PET (MI-PET), can distinguish between different tracer nuclides using coincidence measurement of prompt gamma-rays, which are emitted after positron emission.
arxiv   +1 more source

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein   +7 more
wiley   +1 more source

Evaluation of the performance of a high-resolution time-of-flight PET system dedicated to the head and breast according to NEMA NU 2-2012 standard

open access: yesEJNMMI Physics, 2022
Background This study evaluated the physical performance of a positron emission tomography (PET) system dedicated to the head and breast according to the National Electrical Manufacturers Association (NEMA) NU2-2012 standard.
Daisuke Morimoto-Ishikawa   +10 more
doaj   +1 more source

Erdheim-Chester Disease: Utility of 18F-FDG Positron Emission Tomography [PDF]

open access: yesJournal 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
doaj   +1 more source

PET/CT-based radiomics analysis may help to predict neoadjuvant chemotherapy outcomes in breast cancer

open access: yesFrontiers in Oncology, 2022
BackgroundThe aim of this study was to evaluate the clinical usefulness of radiomics signature-derived 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography–computed tomography (PET-CT) for the early prediction of neoadjuvant chemotherapy (NAC ...
Liping Yang   +10 more
doaj   +1 more source

Predictive value of baseline metabolic tumor burden on 18F-FDG PET/CT for brain metastases in patients with locally advanced non-small-cell lung cancer

open access: yesFrontiers in Oncology, 2022
ObjectivesBrain metastases (BMs) are a major cause leading to the failure of treatment management for non-small-cell lung cancer (NSCLC) patients. The purpose of this study was to evaluate the predictive value of baseline metabolic tumor burden on 18F ...
Jingjie Shang   +9 more
doaj   +1 more source

Systemic atherosclerotic plaque vulnerability in patients with Coronary Artery Disease with a single Whole Body [FDG]PET-CT scan. [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology, 2020
Objective(s): Cardiovascular disease is a leading cause of morbimortality with over half cardiovascular events occurring in the asymptomatic population by traditional risk stratification.
Patricia Sanchez Roa   +3 more
doaj   +1 more source

Associations of Plasma Phospho-Tau217 Levels With Tau Positron Emission Tomography in Early Alzheimer Disease

open access: yesJAMA Neurology, 2020
This cohort study compares plasma levels of phosphorylated tau at threonine 217 with established cerebrospinal fluid and positron emission tomography (PET) tau biomarkers in early Alzheimer disease.
S. Janelidze   +9 more
semanticscholar   +1 more source

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