Results 21 to 30 of about 2,551,121 (363)

Radiochemistry for positron emission tomography

open access: yesNature Communications, 2023
Positron emission tomography (PET) constitutes a functional imaging technique that is harnessed to probe biological processes in vivo. PET imaging has been used to diagnose and monitor the progression of diseases, as well as to facilitate drug ...
Jian Rong   +4 more
semanticscholar   +1 more source

Optical coherence tomography in coronary atherosclerosis assessment and intervention

open access: yesNature Reviews Cardiology, 2022
Since optical coherence tomography (OCT) was first performed in humans two decades ago, this imaging modality has been widely adopted in research on coronary atherosclerosis and adopted clinically for the optimization of percutaneous coronary ...
M. Araki   +113 more
semanticscholar   +1 more source

Influence of Ecological Factors on the Metabolomic Composition of Fish Lenses

open access: yesBiology, 2022
Multiple stressors related to changes in environmental conditions (such as water temperature, salinity, and natural and anthropogenic pollution) may cause biological responses of aquatic organisms that lead to significant variations in the biochemical ...
Yuri P. Tsentalovich   +4 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

How scan parameter choice affects deep learning-based coronary artery disease assessment from computed tomography

open access: yesScientific Reports, 2023
Recently, algorithms capable of assessing the severity of Coronary Artery Disease (CAD) in form of the Coronary Artery Disease-Reporting and Data System (CAD-RADS) grade from Coronary Computed Tomography Angiography (CCTA) scans using Deep Learning (DL ...
Felix Denzinger   +12 more
doaj   +1 more source

Atom probe tomography

open access: yesNature Reviews Methods Primers, 2021
Atom probe tomography (APT) provides three-dimensional compositional mapping with sub-nanometre resolution. The sensitivity of APT is in the range of parts per million for all elements, including light elements such as hydrogen, carbon or lithium ...
T. Spila, D. Ph., W. Swiech
semanticscholar   +2 more sources

High precision dynamic multi-interface profilometry with optical coherence tomography [PDF]

open access: yes, 2011
Optical coherence tomography (OCT) has mostly been used for high speed volume imaging but its profilometry potentials have not been fully exploited. This paper demonstrates high precision (as good as ~50nm) multi-interface profilometry using a Fourier ...
Lawman, S   +3 more
core   +1 more source

Tomography for Improving the Design and Control of Particulate Processing Systems

open access: yesKONA Powder and Particle Journal, 2014
The ability to interrogate the dynamic internal characteristics of processing plants by using conventional instrumentation is severely limited for most practical conditions.
F.J. Dickin   +6 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

Non-contrast quantitative study of brain perfusion changes in multiple sclerosis [PDF]

open access: yesDigital Diagnostics
BACKGROUND: Non-contrast magnetic resonance perfusion can identify areas of cerebral perfusion changes in patients with multiple sclerosis, even in the absence of focal lesions [1]. This technique offers several advantages, including non-invasiveness [2]
Vladimir V. Popov   +3 more
doaj   +1 more source

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