Results 11 to 20 of about 271,559 (315)

Positron-emission tomography [PDF]

open access: yesIEEE Signal Processing Magazine, 1997
We review positron-emission tomography (PET), which has inherent advantages that avoid the shortcomings of other nuclear medicine imaging methods. PET image reconstruction methods with origins in signal and image processing are discussed, including the potential problems of these methods. A summary of statistical image reconstruction methods, which can
Ollinger, John M., Fessler, Jeffrey A.
openaire   +2 more sources

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

NMF on Positron Emission Tomography [PDF]

open access: yes2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007
In positron emission tomography, kinetic modelling of brain tracer uptake, metabolism or binding requires knowledge of the cerebral input function. Traditionally, this is achieved with arterial blood sampling in the arm or as shown in (Liptrot, M, et al., 2004) by non-invasive K-means clustering.
Bjarni Bödvarsson   +3 more
openaire   +1 more source

A heterogeneous phantom study for investigating the stability of PET images radiomic features with varying reconstruction settings

open access: yesFrontiers in Nuclear Medicine, 2023
The purpose of this work was to assess the capability of radiomic features in distinguishing PET image regions with different uptake patterns. Furthermore, we assessed the stability of PET radiomic features with varying image reconstruction settings.
Emad Alsyed   +5 more
doaj   +1 more source

Positron emission tomography

open access: yesMethods, 2002
Positron Emission Tomography (PET) is a method for determining biochemical and physiological processes in vivo in a quantitative way by using radiopharmaceuticals labelled with positron emitting radionuclides as C-11, N-13, O-15 and F-18 and by measuring the annihilation radiation using a coincidence technique. This includes also the measurement of the
Anne, Paans, Aren, van Waarde
openaire   +3 more sources

A case of crossed cerebellar diaschisis on follow-up positron emission tomography/computed tomography with (18F) fluoro-D-glucose after treatment for glioblastoma

open access: yesWorld Journal of Nuclear Medicine, 2019
Crossed cerebellar diaschisis (CCD) represents the reduction of blood flow, metabolism, and oxygen consumption in the cerebellar hemisphere contralateral to a cerebral focal lesion.
Dimitrios Priftakis   +2 more
doaj   +1 more source

The role of artificial intelligence based on PET/CT radiomics in NSCLC: Disease management, opportunities, and challenges

open access: yesFrontiers in Oncology, 2023
ObjectivesLung cancer has been widely characterized through radiomics and artificial intelligence (AI). This review aims to summarize the published studies of AI based on positron emission tomography/computed tomography (PET/CT) radiomics in non-small ...
Qiuyuan Hu   +8 more
doaj   +1 more source

Bayesian model comparison for compartmental models with applications in positron emission tomography [PDF]

open access: yes, 2013
We develop strategies for Bayesian modelling as well as model comparison, averaging and selection for compartmental models with particular emphasis on those that occur in the analysis of positron emission tomography (PET) data.
Aston, John A. D.   +2 more
core   +1 more source

Habitat Imaging-Based 18F-FDG PET/CT Radiomics for the Preoperative Discrimination of Non-small Cell Lung Cancer and Benign Inflammatory Diseases

open access: yesFrontiers in Oncology, 2021
PurposeTo propose and evaluate habitat imaging-based 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) radiomics for preoperatively discriminating non-small cell lung cancer (NSCLC) and benign inflammatory ...
Ling Chen   +5 more
doaj   +1 more source

Detectors in positron emission tomography

open access: yesZeitschrift für Medizinische Physik, 2023
Positron emission tomography is a highly sensitive molecular imaging modality, based on the coincident detection of annihilation photons after positron decay. The most used detector is based on dense, fast, and luminous scintillators read out by light sensors. This review covers the various detector concepts for clinical and preclinical systems.
Zatcepin, Artem, Ziegler, Sibylle I
openaire   +4 more sources

Home - About - Disclaimer - Privacy