A Study on the Dose Distributions in Various Materials from an Ir-192 HDR Brachytherapy Source

Shih Ming Hsu, Chin Hui Wu, Jeng Hung Lee, Ya Ju Hsieh, Chun Yen Yu, Yi Jen Liao, Li Cheng Kuo, Ji An Liang, David Y C Huang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Dose distributions of 192Ir HDR brachytherapy in phantoms simulating water, bone, lung tissue, water-lung and bone-lung interfaces using the Monte Carlo codes EGS4, FLUKA and MCNP4C are reported. Experiments were designed to gather point dose measurements to verify the Monte Carlo results using Gafchromic film, radiophotoluminescent glass dosimeter, solid water, bone, and lung phantom. The results for radial dose functions and anisotropy functions in solid water phantom were consistent with previously reported data (Williamson and Li). The radial dose functions in bone were affected more by depth than those in water. Dose differences between homogeneous solid water phantoms and solid water-lung interfaces ranged from 0.6% to 14.4%. The range between homogeneous bone phantoms and bone-lung interfaces was 4.1% to 15.7%. These results support the understanding in dose distribution differences in water, bone, lung, and their interfaces. Our conclusion is that clinical parameters did not provide dose calculation accuracy for different materials, thus suggesting that dose calculation of HDR treatment planning systems should take into account material density to improve overall treatment quality.

Original languageEnglish
Article numbere44528
JournalPLoS One
Volume7
Issue number9
DOIs
Publication statusPublished - Sep 5 2012

Fingerprint

Brachytherapy
Bone
lungs
bones
Water
Lung
dosage
Bone and Bones
water
Dosimeters
Anisotropy
films (materials)
Glass
glass
planning
Tissue
Planning
Therapeutics

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Hsu, S. M., Wu, C. H., Lee, J. H., Hsieh, Y. J., Yu, C. Y., Liao, Y. J., ... Huang, D. Y. C. (2012). A Study on the Dose Distributions in Various Materials from an Ir-192 HDR Brachytherapy Source. PLoS One, 7(9), [e44528]. https://doi.org/10.1371/journal.pone.0044528

A Study on the Dose Distributions in Various Materials from an Ir-192 HDR Brachytherapy Source. / Hsu, Shih Ming; Wu, Chin Hui; Lee, Jeng Hung; Hsieh, Ya Ju; Yu, Chun Yen; Liao, Yi Jen; Kuo, Li Cheng; Liang, Ji An; Huang, David Y C.

In: PLoS One, Vol. 7, No. 9, e44528, 05.09.2012.

Research output: Contribution to journalArticle

Hsu, SM, Wu, CH, Lee, JH, Hsieh, YJ, Yu, CY, Liao, YJ, Kuo, LC, Liang, JA & Huang, DYC 2012, 'A Study on the Dose Distributions in Various Materials from an Ir-192 HDR Brachytherapy Source', PLoS One, vol. 7, no. 9, e44528. https://doi.org/10.1371/journal.pone.0044528
Hsu, Shih Ming ; Wu, Chin Hui ; Lee, Jeng Hung ; Hsieh, Ya Ju ; Yu, Chun Yen ; Liao, Yi Jen ; Kuo, Li Cheng ; Liang, Ji An ; Huang, David Y C. / A Study on the Dose Distributions in Various Materials from an Ir-192 HDR Brachytherapy Source. In: PLoS One. 2012 ; Vol. 7, No. 9.
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