The MLC tongue-and-groove effect on IMRT dose distributions

J. Deng, T. Pawlicki, Y. Chen, J. S. Li, S. B. Jiang, C. M. Ma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have investigated the tongue-and-groove effect on the IMRT dose distributions using the EGS4/MCDOSE Monte Carlo code. We have compared the dose distributions computed by MCDOSE using the fluence maps with and without tongue-and-groove effect. Our results showed that, for one intensity modulated treatment field, the tongue-and-groove effect could be seen clearly in the dose distributions. For an IMRT treatment with multiple gantry angles, the difference between the dose distributions with and without the tongue-and-groove effect was reduced significantly. After considering the setup errors, however, no distinguished discrepancies were found, indicating that, for IMRT treatment planning, the tongue-and-groove effect can be neglected due to its negligible impact on the overall dose distributions.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
EditorsJ.D. Enderle
Pages2075-2078
Number of pages4
Volume3
StatePublished - 2000
Event22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, United States
Duration: Jul 23 2000Jul 28 2000

Other

Other22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CountryUnited States
CityChicago, IL
Period7/23/007/28/00

    Fingerprint

Keywords

  • EGS4 Monte Carlo
  • IMRT
  • MLC
  • Tongue-and-groove effect

ASJC Scopus subject areas

  • Bioengineering

Cite this

Deng, J., Pawlicki, T., Chen, Y., Li, J. S., Jiang, S. B., & Ma, C. M. (2000). The MLC tongue-and-groove effect on IMRT dose distributions. In J. D. Enderle (Ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 3, pp. 2075-2078)