Radiation dose from MDCT using Monte Carlo simulations: estimating fetal dose due to pulmonary embolism scans accounting for overscan

2007 ◽  
Author(s):  
E. Angel ◽  
C. Wellnitz ◽  
M. Goodsitt ◽  
J. DeMarco ◽  
C. Cagnon ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Monte Carlo ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Fetal Dose

scholarly journals Radiation Dose to the Fetus for Pregnant Patients Undergoing Multidetector CT Imaging: Monte Carlo Simulations Estimating Fetal Dose for a Range of Gestational Age and Patient Size

Radiology ◽  
2008 ◽  
Vol 249 (1) ◽  
pp. 220-227 ◽  
Author(s):  
Erin Angel ◽  
Clinton V. Wellnitz ◽  
Mitchell M. Goodsitt ◽  
Nazanin Yaghmai ◽  
John J. DeMarco ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Gestational Age ◽  
Multidetector Ct ◽  
Ct Imaging ◽  
Patient Size ◽  
Fetal Dose

scholarly journals A parametric study of occupational radiation dose in interventional radiology by Monte-Carlo simulations

2020 ◽  
Vol 78 ◽  
pp. 58-70
Author(s):  
Mahmoud Abdelrahman ◽  
Pasquale Lombardo ◽  
Anna Camp ◽  
Maria A. Duch ◽  
Christophe Phillips ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Interventional Radiology ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Parametric Study ◽  
Occupational Radiation

Radiation dose around a PET scanner installation: Comparison of Monte Carlo simulations, analytical calculations and experimental results

2014 ◽  
Vol 30 (4) ◽  
pp. 448-453 ◽  
Author(s):  
S. Lo Meo ◽  
G. Cicoria ◽  
F. Campanella ◽  
M. Mattozzi ◽  
A.S. Panebianco ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Experimental Results

scholarly journals Reducing fetal radiation dose in computed tomography for pregnant patients: A literature review

2021 ◽  
Vol 2 (4) ◽  
pp. 35-43
Author(s):  
Hamid Ghaznavi ◽  
Keyword(s):  
Computed Tomography ◽  
Pulmonary Embolism ◽  
Radiation Dose ◽  
Renal Stones ◽  
Gestation Period ◽  
Ct Examination ◽  
Golden Standard ◽  
Ionization Radiation ◽  
Radiation Beams ◽  
Fetal Dose

To diagnose diseases during gestation period including renal stones, appendicitis, and pulmonary embolism in pregnant patients, computed tomography (CT) can be a golden standard. Due to CT examination, the fetus is prone to receiving a considerable dose which is the result of direct or scattered (external and internal scattered radiation) beams. The effects of ionization radiation on fetus include mutagenesis and carcinogenesis, therefore, it is essential to reduce fetus dose for pregnant patients who undergo CT examination during gestation period. This article aims to review approaches that are effective in reducing fetal dose in pregnant patients.

Estimation of radiation dose and risk to children undergoing cardiac catheterization for the treatment of a congenital heart disease using Monte Carlo simulations

2012 ◽  
Vol 43 (3) ◽  
pp. 339-346 ◽  
Author(s):  
Emmanuel Yakoumakis ◽  
Helen Kostopoulou ◽  
Triantafilia Makri ◽  
Anastastios Dimitriadis ◽  
Evaggelos Georgiou ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Monte Carlo ◽  
Heart Disease ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Cardiac Catheterization ◽  
Congenital Heart

scholarly journals Variability of surface and center position radiation dose in MDCT: Monte Carlo simulations using CTDI and anthropomorphic phantoms

2009 ◽  
Vol 36 (3) ◽  
pp. 1025-1038 ◽  
Author(s):  
Di Zhang ◽  
Ali S. Savandi ◽  
John J. Demarco ◽  
Chris H. Cagnon ◽  
Erin Angel ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Anthropomorphic Phantoms ◽  
Center Position

Low-voltage EDS of magnesium ferrite Dendrites in a FEG-SEM

1996 ◽  
Vol 54 ◽  
pp. 478-479
Author(s):  
Matthew T. Johnson ◽  
Ian M. Anderson ◽  
Jim Bentley ◽  
C. Barry Carter
Keyword(s):  
Monte Carlo ◽  
Quantitative Analysis ◽  
Monte Carlo Simulations ◽  
Cross Section ◽  
Spatial Resolution ◽  
Low Voltage ◽  
Magnesium Ferrite ◽  
X Ray ◽  
Interaction Volume ◽  
Ferrite Spinel

Energy-dispersive X-ray spectrometry (EDS) performed at low (≤ 5 kV) accelerating voltages in the SEM has the potential for providing quantitative microanalytical information with a spatial resolution of ∼100 nm. In the present work, EDS analyses were performed on magnesium ferrite spinel [(MgxFe1−x)Fe2O4] dendrites embedded in a MgO matrix, as shown in Fig. 1. spatial resolution of X-ray microanalysis at conventional accelerating voltages is insufficient for the quantitative analysis of these dendrites, which have widths of the order of a few hundred nanometers, without deconvolution of contributions from the MgO matrix. However, Monte Carlo simulations indicate that the interaction volume for MgFe2O4 is ∼150 nm at 3 kV accelerating voltage and therefore sufficient to analyze the dendrites without matrix contributions.Single-crystal {001}-oriented MgO was reacted with hematite (Fe2O3) powder for 6 h at 1450°C in air and furnace cooled. The specimen was then cleaved to expose a clean cross-section suitable for microanalysis.

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