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Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations.

Publication ,  Journal Article
Kim, S; Yoshizumi, TT; Toncheva, G; Frush, DP; Yin, F-F
Published in: Radiat Prot Dosimetry
March 2010

The purpose of this study was to establish a dose estimation tool with Monte Carlo (MC) simulations. A 5-y-old paediatric anthropomorphic phantom was computed tomography (CT) scanned to create a voxelised phantom and used as an input for the abdominal cone-beam CT in a BEAMnrc/EGSnrc MC system. An X-ray tube model of the Varian On-Board Imager((R)) was built in the MC system. To validate the model, the absorbed doses at each organ location for standard-dose and low-dose modes were measured in the physical phantom with MOSFET detectors; effective doses were also calculated. In the results, the MC simulations were comparable to the MOSFET measurements. This voxelised phantom approach could produce a more accurate dose estimation than the stylised phantom method. This model can be easily applied to multi-detector CT dosimetry.

Duke Scholars

Published In

Radiat Prot Dosimetry

DOI

EISSN

1742-3406

Publication Date

March 2010

Volume

138

Issue

3

Start / End Page

257 / 263

Location

England

Related Subject Headings

  • Radiometry
  • Radiation Dosage
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Monte Carlo Method
  • Humans
  • Cone-Beam Computed Tomography
  • Computer Simulation
  • Child
  • Body Burden
 

Citation

APA
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ICMJE
MLA
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Kim, S., Yoshizumi, T. T., Toncheva, G., Frush, D. P., & Yin, F.-F. (2010). Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations. Radiat Prot Dosimetry, 138(3), 257–263. https://doi.org/10.1093/rpd/ncp257
Kim, Sangroh, Terry T. Yoshizumi, Greta Toncheva, Donald P. Frush, and Fang-Fang Yin. “Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations.Radiat Prot Dosimetry 138, no. 3 (March 2010): 257–63. https://doi.org/10.1093/rpd/ncp257.
Kim S, Yoshizumi TT, Toncheva G, Frush DP, Yin F-F. Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations. Radiat Prot Dosimetry. 2010 Mar;138(3):257–63.
Kim, Sangroh, et al. “Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations.Radiat Prot Dosimetry, vol. 138, no. 3, Mar. 2010, pp. 257–63. Pubmed, doi:10.1093/rpd/ncp257.
Kim S, Yoshizumi TT, Toncheva G, Frush DP, Yin F-F. Estimation of absorbed doses from paediatric cone-beam CT scans: MOSFET measurements and Monte Carlo simulations. Radiat Prot Dosimetry. 2010 Mar;138(3):257–263.
Journal cover image

Published In

Radiat Prot Dosimetry

DOI

EISSN

1742-3406

Publication Date

March 2010

Volume

138

Issue

3

Start / End Page

257 / 263

Location

England

Related Subject Headings

  • Radiometry
  • Radiation Dosage
  • Phantoms, Imaging
  • Nuclear Medicine & Medical Imaging
  • Monte Carlo Method
  • Humans
  • Cone-Beam Computed Tomography
  • Computer Simulation
  • Child
  • Body Burden