Results 21 to 30 of about 283,672 (380)
Sensors, 2020 Currently there exists little knowledge or work in phantoms for the in-vitro evaluation of photoplethysmography (PPG), and its’ relationship with vascular mechanics.
Michelle Nomoni +2 more
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Phantom depth and stable phantom exactness [PDF]
Transactions of the American Mathematical Society, 2007 Phantom depth, phantom nonzerodivisors, and phantom exact sequences are analogues of the non-“phantom” notions which have been useful in tackling the (very difficult) localization problem in tight closure theory. In the present paper, these notions are developed further and partially reworked. For instance, although no analogue of a long exact sequence
Neil Epstein, Neil Epstein
openaire +2 more sources
Healthcare Technology Letters, 2019 Depth estimation plays an important role in vision-based laparoscope surgical navigation systems. Most learning-based depth estimation methods require ground truth depth or disparity images for training; however, these data are difficult to obtain in ...
Huoling Luo, Qingmao Hu, Fucang Jia
doaj +1 more source
A multi-purpose phantom kit for magnetic particle imaging
Current 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
Analysis of the Attenuation Coefficient of Composite Silicone Rubber and Gliceryn for Soft Tissue Phantom Applications [PDF]
Iranian 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
Tissue Phantoms for Biomedical Applications in Raman Spectroscopy: A Review
Biomedical Engineering and Computational Biology, 2020 Raman spectroscopy is a group of analytical techniques, currently applied in several research fields, including clinical diagnostics. Tissue-mimicking optical phantoms have been established as an essential intermediate stage for medical applications with
M. Vardaki, N. Kourkoumelis
semanticscholar +1 more source
Separation-based model for low-dose CT image denoising
The Journal of Engineering, 2020 Low-dose computed tomography (LDCT) image often contains mottle noise and streak artefacts, which seriously interfere with clinical diagnosis. In this study, the separation-based (SEPB) method is proposed for mottle noise and streak artefacts suppression
Wenbin Chen +8 more
doaj +1 more source
Absolute Quantification in Diagnostic SPECT/CT: The Phantom Premise
Diagnostics, 2021 The application of absolute quantification in SPECT/CT has seen increased interest in the context of radionuclide therapies where patient-specific dosimetry is a requirement within the European Union (EU) legislation.
Stijn De Schepper +3 more
doaj +1 more source
Modern Physics Letters A, 2006 The Observed Perlmutter-Riess Acceleration (OPRA) implies that the expansion of the Universe is currently increasing and is motivation for the so-called phantom energy models. We consider the dynamics of phantom scalar field models. An important physical time constraint, which can be used to rule out many cosmological models, is obtained from the ...
J. Latta, Alan Coley, Sigbjørn Hervik
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3D printing of radioactive phantoms for nuclear medicine imaging
EJNMMI Physics, 2020 Background For multicenter clinical studies, PET/CT and SPECT/CT scanners need to be validated to ensure comparability between various scanner types and brands.
T. Läppchen +7 more
semanticscholar +1 more source