Results 81 to 90 of about 10,308 (248)

Boost-S: Gradient Boosted Trees for Spatial Data and Its Application to FDG-PET Imaging Data [PDF]

open access: yesarXiv, 2021
Boosting Trees are one of the most successful statistical learning approaches that involve sequentially growing an ensemble of simple regression trees (i.e., "weak learners"). However, gradient boosted trees are not yet available for spatially correlated data.
arxiv  

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

Predicting the course of Alzheimer's progression. [PDF]

open access: yes, 2019
Alzheimer's disease is the most common neurodegenerative disease and is characterized by the accumulation of amyloid-beta peptides leading to the formation of plaques and tau protein tangles in brain.
Aisen, Paul S   +6 more
core  

Tumor‐Associated Carbohydrate Antigen 19–9 (CA 19–9), a Promising Target for Antibody‐Based Detection, Diagnosis, and Immunotherapy of Cancer

open access: yesChemMedChem, Volume 19, Issue 24, December 16, 2024.
Carbohydrate antigen 19–9 (CA 19–9), also known as sialyl Lewis A, is a tetrasaccharide overexpressed on a wide range of cancerous cells, most prominently pancreatic ductal adenocarcinoma. The review discusses the synthesis of CA 19–9, elicitation of antibodies through vaccination, development of anti‐CA 19–9 monoclonal antibodies, and their ...
Athar Nakisa   +6 more
wiley   +1 more source

Prognostic Value of Volume-Based Positron Emission Tomography/Computed Tomography in Patients With Nasopharyngeal Carcinoma Treated With Concurrent Chemoradiotherapy [PDF]

open access: yesClinical and Experimental Otorhinolaryngology, 2015
ObjectivesThe aim of this study was to evaluate the prognostic value of volume-based metabolic parameters measured by 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) in patients with nasopharyngeal carcinoma (NPC).MethodsForty-four NPC ...
Seung Hwan Moon   +8 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  

The status of MRI databases across the world focused on psychiatric and neurological disorders

open access: yesPsychiatry and Clinical Neurosciences, Volume 78, Issue 10, Page 563-579, October 2024.
Neuroimaging databases for neuro‐psychiatric disorders enable researchers to implement data‐driven research approaches by providing access to rich data that can be used to study disease, build and validate machine learning models, and even redefine disease spectra.
Saori C. Tanaka   +43 more
wiley   +1 more source

Gamma--ray emission from individual classical novae [PDF]

open access: yes, 1997
Classical novae are important producers of radioactive nuclei, such as be7, n13, f18, na22 and al26. The disintegration of these nuclei produces positrons (except for be7) that through annihilation with electrons produce photons of energies 511 keV and below.
arxiv   +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  

Primary Pulmonary Biphasic Synovial Sarcoma Confirmed by Molecular Detection of a SYT-SSX2 Fusion Gene: Report of 1 Case [PDF]

open access: yes, 2010
We experienced a case of primary pulmonary biphasic synovial sarcoma, which was confirmed by immunohistochemistry and molecular testing of SYT-SSX2 fusion transcripts.
Choi, Won-Il   +5 more
core   +2 more sources

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