2Recep Tayyip Erdoğan Üniversitesi, Eğitim ve Araştırma Hastanesi, Radyasyon Onkolojisi, Rize
3Gazi Üniversitesi Tıp Fakültesi, Radyoloji Anabilim Dalı, Ankara OBJECTIVES
We evaluate the effect of two conformal technique at Turkish women contour which developed order to reduce the lung dose in whole breast radiotherapy at European breast cancer patients.
METHODS
CTV, PTV, lung, heart, contralateral breast and LAD were contoured
on 20 patients referred for breast radiotherapy. Treatment
planning were made as conventional technique (2F-C),
two field non-coplanar conformal technical (2F-NC), 3 field
coplanar conformal technique (3F-C) at Varian Eclipse TPS.
Critical doses were evaluated at DVH. Conformity and homogeneity
index was calculated. Comparison of three groups
made by Kruskal-Wallis test, two separate groups by Mann-
Whitney U test.
RESULTS
Statistically significant differences in favor of 3F-C were detected
on hearth, LAD, contralateral breast doses. Homogeneity
and conformity index was higher for all patients in 3F-C
technique.
CONCLUSION
3F-C technique is adequate for dosimetric aspects and can be
considered in Turkish women especially have coronary artery
disease.