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Accuracy evaluation and acceleration of Monte Carlo simulation of scattered radiation using a high-fidelity mobile X-ray fluoroscopy system model.

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Τίτλος: Accuracy evaluation and acceleration of Monte Carlo simulation of scattered radiation using a high-fidelity mobile X-ray fluoroscopy system model.
Συγγραφείς: Tabuchi M; Division of Medical Quantum Science, Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan., Fujibuchi T; Division of Medical Quantum Science, Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. fujibuchi.toshioh.294@m.kyushu-u.ac.jp., Han D; Department of Radiological Sciences, Kangwon National University, Samcheok, Republic of Korea.
Πηγή: Radiological physics and technology [Radiol Phys Technol] 2026 Sep; Vol. 19 (3), pp. 1450-1459. Date of Electronic Publication: 2026 Aug 03.
Τύπος έκδοσης: Journal Article; Evaluation Study
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Springer Japan Country of Publication: Japan NLM ID: 101467995 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1865-0341 (Electronic) Linking ISSN: 18650333 NLM ISO Abbreviation: Radiol Phys Technol Subsets: MEDLINE
Imprint Name(s): Original Publication: Tokyo : Springer Japan
Ιατρικοί όροι (MeSH): Monte Carlo Method* , Scattering, Radiation*, Fluoroscopy/instrumentation ; Electrons ; Radiation Dosage ; X-Rays
Περίληψη: A high-fidelity electron-source Monte Carlo model of a mobile C-arm fluoroscopy system was developed using Particle and Heavy Ion Transport code system (PHITS) to evaluate scattered radiation and calculation acceleration. Electrons were injected into the X-ray tube target, and energy spectra, dose profiles, and scattered doses around the tube head and in the room were calculated. Simulated spectra Simulated spectra agreed with the measured spectra with a root mean square error of 0.06 or less, and the simulation-to-measurement ratios of the scattered air kerma from the electron-source simulations were within 20% at every measurement point. In the simulated two-dimensional distributions, the electron-source simulations showed higher scattered doses than the photon-source simulation at heights above 150 cm. The time required to reach 10% statistical uncertainty decreased from 168.28 h to 72.33 h using the dump technique and to 1.25 h, excluding the dump-generation stage, when combined with the weight window method. The method supports characterization of scattered air-kerma distributions relevant to occupational exposure.
(© 2026. The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics.)
Competing Interests: Declarations. Conflict of interest: The authors declare no conflict of interest. Ethical approval: This study did not involve human participants or animals and ethical approval was not required. Informed consent: Informed consent was not required for this study.
References: Radiol Phys Technol. 2026 Mar;19(1):21-44. (PMID: 41627716)
Tech Vasc Interv Radiol. 2018 Mar;21(1):37-42. (PMID: 29471999)
Phys Med. 2022 Dec;104:123-128. (PMID: 36401940)
J Radiat Res. 2020 Sep 8;61(5):691-696. (PMID: 32657327)
Med Phys. 2018 Jan;45(1):e1-e5. (PMID: 29178605)
Radiology. 2008 Sep;248(3):945-53. (PMID: 18632529)
Phys Med. 2020 Jun 5;75:44-54. (PMID: 32512239)
Health Phys. 2008 Mar;94(3):211-27. (PMID: 18301095)
Radiol Phys Technol. 2024 Mar;17(1):288-296. (PMID: 38316688)
Radiol Phys Technol. 2019 Dec;12(4):401-408. (PMID: 31617146)
Med Phys. 2021 Jul;48(7):3630-3637. (PMID: 33993511)
Phys Med. 2020 Oct;78:58-70. (PMID: 32947085)
Med Phys. 2021 Apr;48(4):1956-1966. (PMID: 33544901)
Health Phys. 2008 Nov;95(5):638-44. (PMID: 18849697)
Contributed Indexing: Keywords: Heel effect; Monte Carlo simulation; Scattered radiation; Variance reduction technique; X-ray fluoroscopy
Entry Date(s): Date Created: 20260803 Date Completed: 20260905 Latest Revision: 20261008
Update Code: 20261008
DOI: 10.1007/s12194-026-01111-4
PMID: 42545599
Βάση Δεδομένων: MEDLINE
FullText Text:
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DbLabel: MEDLINE
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Accuracy evaluation and acceleration of Monte Carlo simulation of scattered radiation using a high-fidelity mobile X-ray fluoroscopy system model.
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  Data: <searchLink fieldCode="AU" term="%22Tabuchi+M%22">Tabuchi M</searchLink>; Division of Medical Quantum Science, Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.<br /><searchLink fieldCode="AU" term="%22Fujibuchi+T%22">Fujibuchi T</searchLink>; Division of Medical Quantum Science, Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. fujibuchi.toshioh.294@m.kyushu-u.ac.jp.<br /><searchLink fieldCode="AU" term="%22Han+D%22">Han D</searchLink>; Department of Radiological Sciences, Kangwon National University, Samcheok, Republic of Korea.
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  Data: <searchLink fieldCode="JN" term="%22101467995%22">Radiological physics and technology</searchLink> [Radiol Phys Technol] 2026 Sep; Vol. 19 (3), pp. 1450-1459. <i>Date of Electronic Publication: </i>2026 Aug 03.
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  Data: <i>Original Publication</i>: Tokyo : Springer Japan
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  Data: <searchLink fieldCode="MM" term="%22Monte+Carlo+Method%22">Monte Carlo Method*</searchLink> <br /><searchLink fieldCode="MM" term="%22Scattering%2C+Radiation%22">Scattering, Radiation*</searchLink><br /><searchLink fieldCode="MH" term="%22Fluoroscopy%22">Fluoroscopy</searchLink>/<searchLink fieldCode="MH" term="%22Fluoroscopy+instrumentation%22">instrumentation</searchLink> ; <searchLink fieldCode="MH" term="%22Electrons%22">Electrons</searchLink> ; <searchLink fieldCode="MH" term="%22Radiation+Dosage%22">Radiation Dosage</searchLink> ; <searchLink fieldCode="MH" term="%22X-Rays%22">X-Rays</searchLink>
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  Label: Abstract
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  Data: A high-fidelity electron-source Monte Carlo model of a mobile C-arm fluoroscopy system was developed using Particle and Heavy Ion Transport code system (PHITS) to evaluate scattered radiation and calculation acceleration. Electrons were injected into the X-ray tube target, and energy spectra, dose profiles, and scattered doses around the tube head and in the room were calculated. Simulated spectra Simulated spectra agreed with the measured spectra with a root mean square error of 0.06 or less, and the simulation-to-measurement ratios of the scattered air kerma from the electron-source simulations were within 20% at every measurement point. In the simulated two-dimensional distributions, the electron-source simulations showed higher scattered doses than the photon-source simulation at heights above 150 cm. The time required to reach 10% statistical uncertainty decreased from 168.28 h to 72.33 h using the dump technique and to 1.25 h, excluding the dump-generation stage, when combined with the weight window method. The method supports characterization of scattered air-kerma distributions relevant to occupational exposure.<br /> (© 2026. The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics.)
– Name: Abstract
  Label: Competing Interests
  Group: Ab
  Data: Declarations. Conflict of interest: The authors declare no conflict of interest. Ethical approval: This study did not involve human participants or animals and ethical approval was not required. Informed consent: Informed consent was not required for this study.
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  Label: References
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  Data: Radiol Phys Technol. 2026 Mar;19(1):21-44. (PMID: <searchLink fieldCode="PM" term="%2241627716%22">41627716)</searchLink><br />Tech Vasc Interv Radiol. 2018 Mar;21(1):37-42. (PMID: <searchLink fieldCode="PM" term="%2229471999%22">29471999)</searchLink><br />Phys Med. 2022 Dec;104:123-128. (PMID: <searchLink fieldCode="PM" term="%2236401940%22">36401940)</searchLink><br />J Radiat Res. 2020 Sep 8;61(5):691-696. (PMID: <searchLink fieldCode="PM" term="%2232657327%22">32657327)</searchLink><br />Med Phys. 2018 Jan;45(1):e1-e5. (PMID: <searchLink fieldCode="PM" term="%2229178605%22">29178605)</searchLink><br />Radiology. 2008 Sep;248(3):945-53. (PMID: <searchLink fieldCode="PM" term="%2218632529%22">18632529)</searchLink><br />Phys Med. 2020 Jun 5;75:44-54. (PMID: <searchLink fieldCode="PM" term="%2232512239%22">32512239)</searchLink><br />Health Phys. 2008 Mar;94(3):211-27. (PMID: <searchLink fieldCode="PM" term="%2218301095%22">18301095)</searchLink><br />Radiol Phys Technol. 2024 Mar;17(1):288-296. (PMID: <searchLink fieldCode="PM" term="%2238316688%22">38316688)</searchLink><br />Radiol Phys Technol. 2019 Dec;12(4):401-408. (PMID: <searchLink fieldCode="PM" term="%2231617146%22">31617146)</searchLink><br />Med Phys. 2021 Jul;48(7):3630-3637. (PMID: <searchLink fieldCode="PM" term="%2233993511%22">33993511)</searchLink><br />Phys Med. 2020 Oct;78:58-70. (PMID: <searchLink fieldCode="PM" term="%2232947085%22">32947085)</searchLink><br />Med Phys. 2021 Apr;48(4):1956-1966. (PMID: <searchLink fieldCode="PM" term="%2233544901%22">33544901)</searchLink><br />Health Phys. 2008 Nov;95(5):638-44. (PMID: <searchLink fieldCode="PM" term="%2218849697%22">18849697)</searchLink>
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  Data: <i>Keywords: </i>Heel effect; Monte Carlo simulation; Scattered radiation; Variance reduction technique; X-ray fluoroscopy
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      – SubjectFull: Electrons
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      – SubjectFull: Radiation Dosage
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