Results 1 to 10 of about 8,831 (260)
Exposure computational models with voxel phantoms coupled to EGSnrc Monte Carlo code
Brazilian Journal of Radiation Sciences, 2023 In computational dosimetry of ionizing radiation, the energy deposited in radiosensitive organs and tissues is evaluated when an anthropomorphic simulator (phantom) is irradiated using Exposure Computational Models (ECMs).
José Wilson Vieira +13 more
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A novel method for harmonization of PET image spatial resolution without phantoms [PDF]
EJNMMI PhysicsBackground Estimation of the spatial resolution in real images is extremely important in several fields, including crystallography, optics, microscopy, and tomography. In human PET imaging, estimating spatial resolution typically involves the acquisition
Felix Carbonell +4 more
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Organ dose conversion coefficients in CT scans for Korean adult males and females
Nuclear Engineering and Technology, 2022 Dose monitoring in CT patients requires accurate dose estimation but most of the CT dose calculation tools are based on Caucasian computational phantoms.
Choonsik Lee +5 more
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New thyroid models for ICRP pediatric mesh-type reference computational phantoms
Nuclear Engineering and Technology, 2022 As part of the ICRP Task Group 103 project, we developed ten thyroid models for the pediatric mesh-type reference computational phantoms (MRCPs). The thyroid is not only a radiosensitive target organ needed for effective dose calculation but an important
Yeon Soo Yeom +11 more
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Computational and Phantom-Based Feasibility Study of 3D dcNCI With Ultra-Low-Field MRI
Frontiers in Physics, 2021 The possibility to directly and non-invasively localize neuronal activities in the human brain, as for instance by performing neuronal current imaging (NCI) via magnetic resonance imaging (MRI), would be a breakthrough in neuroscience. In order to assess
Nora Höfner +4 more
doaj +1 more source
Nuclear Engineering and Technology, 2020 Recently, the International Commission on Radiological Protection (ICRP) has developed the Mesh-type Reference Computational Phantoms (MRCPs) for adult male and female to overcome the limitations of the current Voxel-type Reference Computational Phantoms
Yeon Soo Yeom +7 more
doaj +1 more source
Frontiers in Oncology, 2022 3DCRT and IMRT out-of-field doses in pediatric patients were compared using Monte Carlo simulations with treatment planning system calculations and measurements.PurposeOut-of-field doses are given to healthy tissues, which may allow the development of ...
Ana Cravo Sá +7 more
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Development of anthropomorphic computational phantoms at the UFPE
Brazilian Journal of Radiation Sciences, 2023 To evaluate the amount of energy deposited in radiosensitive organs and tissues of the human body, when an anthropomorphic phantom is irradiated, researchers in numerical dosimetry use the so-called exposure computational models (ECMs).
José Wilson Vieira +10 more
doaj +1 more source
Implementation of Visible monkey into general-purpose Monte Carlo codes: MCNP, PHITS, and Geant4
Nuclear Engineering and Technology, 2023 Recently, a new monkey computational phantom, called Visible Monkey, was developed for non-ionizing radiation studies in animal research. In this study, we extended its applications to ionizing radiation studies by implementing the voxel model of the ...
Soo Min Lee +9 more
doaj +1 more source
, 2016 Fiber tractography uses diffusion MRI to estimate the trajectory and cortical projection zones of white matter fascicles in the living human brain. There are many different tractography algorithms and each requires the user to set several parameters ...
Caiafa, César Federico +3 more
core +3 more sources