Impact of ROI Size on the Accuracy of Noise Measurement in CT on Computational and ACR Phantoms [PDF]
Journal of Biomedical Physics and Engineering, 2022 Background: The effect of region of interest (ROI) size variation on producing accurate noise levels is not yet studied. Objective: This study aimed to evaluate the influence of ROI sizes on the accuracy of noise measurement in computed tomography (CT ...
Choirul Anam +6 more
doaj +2 more sources
Physics in Medicine & Biology, 2019 Recently, the Task Group 103 of the International Commission on Radiological Protection (ICRP) has developed new mesh-type reference computational phantoms (MRCPs) for adult male and female. When compared to the current voxel-type reference computational
Hanjin Lee +9 more
semanticscholar +5 more sources
Inverse consistency error for validating deformable image registration: an explorative study on computational phantoms [PDF]
Physics and Imaging in Radiation OncologyBackground and Purpose: Validation of deformable image registration (DIR) remains predominantly contourbased; this study evaluated inverse consistency error (ICE) as an automated voxelwise metric for DIR accuracy.
Gianfranco Loi +9 more
doaj +2 more sources
IDAC-Dose 2.2, an internal dosimetry software for diagnostic nuclear medicine based on the latest ICRP adult and paediatric reference computational phantoms [PDF]
EJNMMI PhysicsBackground For patients investigated with radiopharmaceuticals, it is important to be able to perform valid calculations of the absorbed dose in organs and tissues. An internal dosimetry computer program, IDAC-Dose2.1, has been updated to be based on the
Martin Andersson +2 more
doaj +2 more sources
An algorithm for posturing computational phantoms [PDF]
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med), 2018 Generation of postured computational phantom is crucial for simulating exposure to electromagnetic field in realistic situations. Most posturing algorithms are based on free form deformations (FFD), which have the defect of incorrectly deform rigid ...
R. Scorretti
semanticscholar +2 more sources
Nuclear Engineering and Technology, 2019 In the present study, we established a comprehensive dataset of dose coefficients (DCs) of the new mesh-type ICRP reference computational phantoms (MRCPs) for idealized external exposures of photons and electrons with the Geant4 code.
Yeon Soo Yeom +8 more
doaj +2 more sources
Stochastic parametric skeletal dosimetry model for humans: Pediatric and adult computational skeleton phantoms for internal bone marrow dosimetry. [PDF]
PLoS OneCurrently, computational phantoms that simulate skeletal tissues are used in active red bone marrow (AM) internal dosimetry. Up-to-date reference computational phantoms recommended by the ICRP are based on the analysis of CT-images of cadavers.
Sharagin PA +4 more
europepmc +2 more sources
Hybrid computational phantoms for medical dose reconstruction. [PDF]
Radiat Environ Biophys, 2010 As outlined in NCRP Report No. 160 of the US National Council on Radiation Protection and Measurements (NCRP), the average value of the effective dose to exposed individuals in the United States has increased by a factor of 1.7 over the time period 1982-2006, with the contribution of medical exposures correspondingly increasing by a factor of 5.7.
Bolch W, Lee C, Wayson M, Johnson P.
europepmc +4 more sources
Application of a virtual imaging framework for investigating a deep learning-based reconstruction method for 3D quantitative photoacoustic computed tomography [PDF]
PhotoacousticsQuantitative photoacoustic computed tomography (qPACT) is a promising imaging modality for estimating physiological parameters such as blood oxygen saturation.
Refik Mert Cam +3 more
doaj +2 more sources
Dose coefficients of percentile-specific computational phantoms for photon external exposures. [PDF]
Radiat Environ Biophys, 2020 Yeom YS +5 more
europepmc +2 more sources