Articles with "air kerma" as a keyword



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Application of reference air kerma alert levels for pediatric fluoroscopic examinations

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Published in 2022 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.13721

Abstract: Abstract The purpose of this study was to provide an empirical model to develop reference air kerma (RAK) alert levels as a function of patient thickness or age for pediatric fluoroscopy for any institution to… read more here.

Keywords: alert levels; air kerma; patient thickness; age ... See more keywords
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Lowering air kerma to improve the CTO operator's karma

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Published in 2023 at "Catheterization and Cardiovascular Interventions"

DOI: 10.1002/ccd.30662

Abstract: Percutaneous coronary intervention (PCI) of chronic total occlusion (CTO) is associated with a longer fluoroscopy time and a higher radiation dose as compared to non‐CTO PCI. Absorbed radiation dose, in turn, is a relevant issue… read more here.

Keywords: operator; cto; complex ctos; air kerma ... See more keywords
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Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15798

Abstract: PURPOSE The gold-standard method for estimation of patient-specific organ doses in digital tomosynthesis (DT) requires protocol-specific Monte Carlo (MC) simulations of radiation transport in anatomically accurate computational phantoms. Although accurate, MC simulations are computationally expensive,… read more here.

Keywords: exam protocols; patient specific; patient; air kerma ... See more keywords
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Influence of distant scatterer on air kerma measurement in the evaluation of diagnostic X-rays using Monte Carlo simulation

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Published in 2021 at "Radiological Physics and Technology"

DOI: 10.1007/s12194-021-00641-3

Abstract: The evaluation of the entrance surface dose (ESD) ensures safe radiation doses for X-ray imaging patients. The air kerma free-in-air value used to estimate ESD may be affected by those X-rays that scatter from the… read more here.

Keywords: air kerma; distance; monte carlo; scatterer ... See more keywords
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Comparison of air kerma rate between the S7500 and S7600 xoft axxent sources.

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Published in 2022 at "Brachytherapy"

DOI: 10.1016/j.brachy.2021.12.005

Abstract: PURPOSE The purpose of this work was to evaluate differences in air-kerma rate of the older, S7500 water-cooled Xoft Axxent source and newer, S7600 Galden-cooled source. METHODS AND MATERIALS The Attix Free Air Chamber (FAC)… read more here.

Keywords: air; xoft axxent; kerma rate; air kerma ... See more keywords
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Conversion coefficients calculation of mono-energetic photons from air-kerma using Monte Carlo and analytical methods

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Published in 2020 at "Journal of King Saud University - Science"

DOI: 10.1016/j.jksus.2018.05.007

Abstract: Abstract This study is aimed to calculate the conversion coefficients H∗(10)/Φ form air-kerma for beams of mono-energetic photons, which incident on ICRU sphere diameter 30 cm of ICRU tissues material with a density of 1 g/cm3 four-element… read more here.

Keywords: monte carlo; mono energetic; air kerma; energetic photons ... See more keywords
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Establishment of diagnostic X-ray air kerma standard in Taiwan

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Published in 2020 at "Radiation Physics and Chemistry"

DOI: 10.1016/j.radphyschem.2020.108748

Abstract: Abstract Diagnostic X-ray air kerma standards were established at the Institute of Nuclear Energy Research (INER, Taiwan) in accordance with the recommendations of IEC 61267. The radiation qualities established by INER include IEC 61267 RQR… read more here.

Keywords: diagnostic ray; air kerma; ray air; air ... See more keywords
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Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the BEV, Austria and the BIPM in 60Co gamma radiation

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Published in 2021 at "Metrologia"

DOI: 10.1088/0026-1394/58/1a/06004

Abstract: A new key comparison of the standards for air kerma of the Bundesamt f¨r Eich- und Vermessungswesen (BEV), Austria and of the Bureau International des Poids et Mesures (BIPM) was carried out in the 60Co… read more here.

Keywords: comparison; bipm; air kerma; key comparison ... See more keywords
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Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the GUM, Poland, and the BIPM in medium-energy x-rays

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Published in 2021 at "Metrologia"

DOI: 10.1088/0026-1394/58/1a/06016

Abstract: A key comparison has been made between the air-kerma standards of the GUM and the BIPM in the medium-energy x-ray range. The results show the standards to be in agreement at the level of the… read more here.

Keywords: comparison; bipm; air kerma; key comparison ... See more keywords
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Key comparison BIPM.RI(I)-K7 of the air-kerma standards of the NMIJ, Japan and the BIPM in mammography x-rays

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Published in 2021 at "Metrologia"

DOI: 10.1088/0026-1394/58/1a/06023

Abstract: A new key comparison has been made between the air-kerma standards of the NMIJ and the BIPM in mammography x ray beams. The results show the standards to be in agreement at the level of… read more here.

Keywords: bipm; air kerma; key comparison; kerma standards ... See more keywords
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Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the ARPANSA, Australia, and the BIPM in medium-energy x-rays

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Published in 2021 at "Metrologia"

DOI: 10.1088/0026-1394/58/1a/06024

Abstract: To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been… read more here.

Keywords: bipm; air kerma; key comparison; comparison bipm ... See more keywords