Results 21 to 30 of about 57,882 (315)

A multi-purpose phantom kit for magnetic particle imaging

open access: yesCurrent Directions in Biomedical Engineering, 2021
Phantoms are essential tools for the development and characterization of Magnetic Particle Imaging (MPI), an imaging technique that can quantitatively map the spatial distribution of magnetic nanoparticles (MNP).
Löwa Norbert   +5 more
doaj   +1 more source

On phantom thermodynamics [PDF]

open access: yesPhysics Letters B, 2008
The thermodynamic properties of dark energy fluids described by an equation of state parameter $ω=p/ρ$ are rediscussed in the context of FRW type geometries. Contrarily to previous claims, it is argued here that the phantom regime $ω0$ and $S>0$ in the course of the Universe expansion.
Pereira, S. H., Lima, J. A. S.
openaire   +2 more sources

Multilayer silicone phantoms for the evaluation of quantitative optical techniques in skin imaging [PDF]

open access: yes, 2010
With the development of multilayer models for the analysis of quantitative spectroscopic techniques, there is a need to generate controlled and stable phantoms capable of validating these new models specific to the particular instrument performance and ...
Kendrew Au   +17 more
core   +1 more source

Time-gated transillumination and reflection by biological tissues and tissuelike phantoms: simulation versus experiment [PDF]

open access: yes, 1997
A numerical method is presented to solve exactly the time-dependent diffusion equation that describes light transport in turbid media. The simulation takes into account spatial variations of the scattering and absorption factors of the medium and the ...
García, N.   +5 more
core   +1 more source

Tissue-mimicking phantoms for biomedical applications [PDF]

open access: yes, 2020
Emerging biomedical instrumentation for imaging and diagnostics requires tissue-mimicking phantoms with optical properties close to those of real biological tissues.
Bykov, Alexander   +4 more
core   +2 more sources

Analysis of a Flexible Dual-Channel Octagonal Coil System for UHF MRI

open access: yesIEEE Access, 2022
Nowadays, MRI is focused on using ultra-high static magnetic fields (>7 T) to increase the signal-to-noise ratio. The use of high fields, on the other hand, requires novel technical solutions as well as more stringent design criteria for specific ...
Nicola Curreli   +8 more
doaj   +1 more source

Analysis of the Attenuation Coefficient of Composite Silicone Rubber and Gliceryn for Soft Tissue Phantom Applications [PDF]

open access: yesIranian Journal of Medical Physics, 2020
Introduction: Phantom is an object that can be used to investigate the accuracy of radiation dose delivered to patients. Phantom is usually produced from the combination of the silicone rubber as a matrix and glycerin as a filler to form a composite for ...
Asnaeni Ansar   +6 more
doaj   +1 more source

Virtual Phantoms

open access: yes, 2021
This folder contains 5 patient-derived virtual phantoms. Virtual phantoms were developed from patient scan data to provide flexible, programmable, and quantiative ground truths for reconstruction testing while maintaining realistic models of patient ...
Ty Easley (11251428)
core   +1 more source

Head-compliant microstrip split ring resonator for non-invasive healing monitoring after craniosynostosis-based surgery

open access: yesHealthcare Technology Letters, 2019
A soft and highly directive, proximity-coupled split-ring resonator fabricated with a liquid alloy, copper and polydimethylsiloxane (PDMS) is presented. The same was designed for sensing osteogenesis of calvarial bone.
Mauricio David Perez   +10 more
doaj   +1 more source

Quantum Iterative Reconstruction for Low-Dose Ultra-High-Resolution Photon-Counting Detector CT of the Lung

open access: yesDiagnostics, 2022
The aim of this study was to characterize image quality and to determine the optimal strength levels of a novel iterative reconstruction algorithm (quantum iterative reconstruction, QIR) for low-dose, ultra-high-resolution (UHR) photon-counting detector ...
Thomas Sartoretti   +9 more
doaj   +1 more source

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