Results 21 to 30 of about 456,556 (361)

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

Frontiers 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, Emad Alsyed, Rhodri Smith, Lee Bartley, Christopher Marshall, Emiliano Spezi   +5 more
doaj   +1 more source

Positron emission tomography

Methods, 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

Association of Amyloid Positron Emission Tomography With Subsequent Change in Clinical Management Among Medicare Beneficiaries With Mild Cognitive Impairment or Dementia

Journal of the American Medical Association (JAMA), 2019
Importance Amyloid positron emission tomography (PET) detects amyloid plaques in the brain, a core neuropathological feature of Alzheimer disease. Objective To determine if amyloid PET is associated with subsequent changes in the management of patients ...
G. Rabinovici, C. Gatsonis, Charles Apgar, K. Chaudhary, Ilana F. Gareen, Lucy Hanna, James A. Hendrix, B. Hillner, Cynthia Olson, Orit H Lesman-Segev, J. Romanoff, B. Siegel, R. Whitmer, M. Carrillo   +13 more
semanticscholar   +1 more source

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

World 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, Phivi Rondogianni, Ioannis Datseris   +2 more
doaj   +1 more source

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

Frontiers 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, Ke Li, Conghui Yang, Yue Wang, Rong Huang, Mingqiu Gu, Yuqiang Xiao, Yunchao Huang, Long Chen   +8 more
doaj   +1 more source

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

, 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., Zhou, Yan, Johansen, Adam M.   +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

Frontiers 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, Kanfeng Liu, Xin Zhao, Hui Shen, Kui Zhao, Wentao Zhu   +5 more
doaj   +1 more source

Detectors in positron emission tomography

Zeitschrift 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

PET Imaging of Synaptic Density: Challenges and Opportunities of Synaptic Vesicle Glycoprotein 2A PET in Small Animal Imaging

Frontiers in Neuroscience, 2022
The development of novel PET imaging agents for synaptic vesicle glycoprotein 2A (SV2A) allowed for the in vivo detection of synaptic density changes, which are correlated with the progression and severity of a variety of neuropsychiatric diseases. While
Takuya Toyonaga, Arman Fesharaki-Zadeh, Arman Fesharaki-Zadeh, Stephen M. Strittmatter, Stephen M. Strittmatter, Richard E. Carson, Zhengxin Cai   +6 more
doaj   +1 more source

Reliability of gradient-based segmentation for measuring metabolic parameters influenced by uptake time on 18F-PSMA-1007 PET/CT for prostate cancer

Frontiers in Oncology, 2022
PurposeTo determine an optimal setting for functional contouring and quantification of prostate cancer lesions with minimal variation by evaluating metabolic parameters on 18F-PSMA-1007 PET/CT measured by threshold-based and gradient-based methods under ...
Yu Ching Lau, Yu Ching Lau, Sirong Chen, Chi Lai Ho, Jing Cai   +4 more
doaj   +1 more source