Results 221 to 230 of about 8,831 (260)
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Radiation Research, 2019
An important cohort of the atomic bomb survivors are women who were pregnant when exposed to the photon and neutron fields at both Hiroshima and Nagasaki, as well as their children who were exposed in utero. Estimates of organ dose to the developing fetus allow for the development of dose-dependent and gestational age-dependent models of deterministic (
Colin, Paulbeck +9 more
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An important cohort of the atomic bomb survivors are women who were pregnant when exposed to the photon and neutron fields at both Hiroshima and Nagasaki, as well as their children who were exposed in utero. Estimates of organ dose to the developing fetus allow for the development of dose-dependent and gestational age-dependent models of deterministic (
Colin, Paulbeck +9 more
openaire +2 more sources
Radiotherapy and Oncology, 2012
Purpose: Carcinoma-Associated Fibroblasts (CAFs) are major components of solid malignancies and play central roles in cancer sustainability. In this study we have investigated the invasive capacity and matrix remodelling properties of human lung CAFs after exposure to ablative doses of ionizing radiation (IR), corresponding to fractions delivered by ...
W. Alsaleh, R. Hugtenburg
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Purpose: Carcinoma-Associated Fibroblasts (CAFs) are major components of solid malignancies and play central roles in cancer sustainability. In this study we have investigated the invasive capacity and matrix remodelling properties of human lung CAFs after exposure to ablative doses of ionizing radiation (IR), corresponding to fractions delivered by ...
W. Alsaleh, R. Hugtenburg
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Radiation Research, 2020
Owing to recent advances in computational dosimetry tools, an update is warranted for the dosimetry system for atomic bomb survivors that was established by the Joint U.S.Japan Working Group on the Reassessment of Atomic Bomb Dosimetry in 2002 (DS02). The DS02 system, and its predecessor, DS86, at the Radiation Effects Research Foundation (RERF), are ...
Tatsuhiko, Sato +9 more
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Owing to recent advances in computational dosimetry tools, an update is warranted for the dosimetry system for atomic bomb survivors that was established by the Joint U.S.Japan Working Group on the Reassessment of Atomic Bomb Dosimetry in 2002 (DS02). The DS02 system, and its predecessor, DS86, at the Radiation Effects Research Foundation (RERF), are ...
Tatsuhiko, Sato +9 more
openaire +2 more sources
Oral Radiology, 2014
Objectives The aim of this study was to reveal the three-dimensional fluctuation of voxel values in a uniform material placed inside a phantom simulating a human head when it was scanned with cone-beam computed tomography (CBCT) for dental use.
Yoshikazu Nomura +3 more
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Objectives The aim of this study was to reveal the three-dimensional fluctuation of voxel values in a uniform material placed inside a phantom simulating a human head when it was scanned with cone-beam computed tomography (CBCT) for dental use.
Yoshikazu Nomura +3 more
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Radiation Protection Dosimetry, 2000
A Monte Carlo computer model of X ray imaging systems has been developed which uses a voxel phantom to simulate the patient. Image details were selected in accordance with the European quality criteria document. Contrast and signal-to-noise ratio for these details were calculated to estimate image quality.
M. Sandborg +4 more
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A Monte Carlo computer model of X ray imaging systems has been developed which uses a voxel phantom to simulate the patient. Image details were selected in accordance with the European quality criteria document. Contrast and signal-to-noise ratio for these details were calculated to estimate image quality.
M. Sandborg +4 more
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Radiation Physics and Chemistry, 2017
Abstract Cone-Beam Computed Tomography (CBCT) enables high-resolution volumetric scanning of the bone and soft tissue anatomy under investigation at the treatment accelerator. This technique is extensively used in Image Guided Radiation Therapy (IGRT) for pre-treatment verification of patient position and target volume localization.
M. Baptista +3 more
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Abstract Cone-Beam Computed Tomography (CBCT) enables high-resolution volumetric scanning of the bone and soft tissue anatomy under investigation at the treatment accelerator. This technique is extensively used in Image Guided Radiation Therapy (IGRT) for pre-treatment verification of patient position and target volume localization.
M. Baptista +3 more
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Medical Physics, 2014
Purpose:ImpactMC (CT Imaging, Erlangen, Germany) is a Monte Carlo (MC) software package that offers a GPU enabled, user definable and validated method for 3D dose distribution calculations for radiography and Computed Tomography (CT). ImpactMC, in and of itself, offers limited capabilities to perform batch simulations.
R Bujila, P Nowik, G Poludniowski
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Purpose:ImpactMC (CT Imaging, Erlangen, Germany) is a Monte Carlo (MC) software package that offers a GPU enabled, user definable and validated method for 3D dose distribution calculations for radiography and Computed Tomography (CT). ImpactMC, in and of itself, offers limited capabilities to perform batch simulations.
R Bujila, P Nowik, G Poludniowski
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Health Physics, 2010
The current dose coefficients for internal dose assessment of occupationally exposed persons and the general public were derived using the methodology of the International Commission on Radiological Protection (ICRP), which is similar to the Medical Internal Radiation Dose (MIRD)-type methodology.
W B, Li +7 more
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The current dose coefficients for internal dose assessment of occupationally exposed persons and the general public were derived using the methodology of the International Commission on Radiological Protection (ICRP), which is similar to the Medical Internal Radiation Dose (MIRD)-type methodology.
W B, Li +7 more
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Medical Physics, 2014
Purpose:Computational voxel phantom provides realistic anatomy but the voxel structure may result in dosimetric error compared to real anatomy composed of perfect surface. We analyzed the dosimetric error caused from the voxel structure in hybrid computational phantoms by comparing the voxel‐based doses at different resolutions with triangle mesh‐based
C Lee, A Badal
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Purpose:Computational voxel phantom provides realistic anatomy but the voxel structure may result in dosimetric error compared to real anatomy composed of perfect surface. We analyzed the dosimetric error caused from the voxel structure in hybrid computational phantoms by comparing the voxel‐based doses at different resolutions with triangle mesh‐based
C Lee, A Badal
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Medical Physics, 2010
Purpose Here we present a rapid whole body dose estimation approach applied to a clinical water phantom and whole body CT‐voxelized phantom, using electron dose kernels coupled with deterministic photon transport. This method yields fast, accurate whole body doses.
M Huang +4 more
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Purpose Here we present a rapid whole body dose estimation approach applied to a clinical water phantom and whole body CT‐voxelized phantom, using electron dose kernels coupled with deterministic photon transport. This method yields fast, accurate whole body doses.
M Huang +4 more
openaire +1 more source