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 language | English (US) |
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Title of host publication | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings |
Editors | J.D. Enderle |
Pages | 2075-2078 |
Number of pages | 4 |
Volume | 3 |
State | Published - 2000 |
Event | 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, United States Duration: Jul 23 2000 → Jul 28 2000 |
Other
Other | 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
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Country/Territory | United States |
City | Chicago, IL |
Period | 7/23/00 → 7/28/00 |
Keywords
- EGS4 Monte Carlo
- IMRT
- MLC
- Tongue-and-groove effect
ASJC Scopus subject areas
- Bioengineering