|
KMID : 1164220100220010041
|
|
Journal of Korean Society for Radiotherapeutic Technology
2010 Volume.22 No. 1 p.41 ~ p.46
|
|
|
A Comparison of Field-in-Field Intensity Modulated Radiation Therapy Planning and Conventional Radiation Therapy Planning with Tangential Beam for Breast Cancer
|
|
Yoo Soon-Mi
Yeom Mi-Suk
Kim Dae-Sup
Back Geum-Mun
Kwon Kyung-Tae
|
|
|
Abstract
|
|
|
Purpose: To analyze differences in the dose uniformity for the computed breast radiation therapy planning with tangential beam between conventional RT using wedge filter and FiF-IMRT using multileaf collimator based onsizes and volumes of breasts.
Materials and Methods: Thirty breast cancer patients were classified according to the sizes and volumes of the breasts using Eclipse treatment planning system (Varian™, USA, V8.0). Conformity Index and Homogeneity Index were computed along with Dose Volume Histogram.
Results: No differencein CI (±1.2%) was observed. However, lower mean HI (1.67%) in FiF-IMRT was observed compared to that of the conventional RT. Statically significant (P<0.01) correlation was identified between the values of Δ HI (%) and physical parameters such as breast volumes and separations.
Conclusion: Increase in breast volume and separation improves the dose uniformities in computed radiation therapy planning for FiF-IMRT. Physical dimension of the breast should be considered to optimize the compured radiation therapy planning.
|
|
|
KEYWORD
|
|
|
breast cancer, FiF-IMRT, computed radiation therapy planning, DVH
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|