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Duzlestirici Filtre Serbest (FFF) foton isinlari, radyoterapi klinik pratiginde siklikla kullanilmaktadir. Bu calismada, 6 ve 10 MV foton enerjileri ve 3D konformal radyoterapi teknigi (3D-CRT) kullanilarak uc kanser bolgesi iceren uc hastanin tedavi planlari icin standart duzlestirilmis kirislere (FB) kiyasla FFF isinlarinin dozimetrik kalitesini analiz etmeyi amacladik. Planlanan hedef hacim dozlari (PTV'ler) ve risk altindaki organlar (OAR'ler) karsilastirildi. Doz-hacim histogram egrileri analizi, FFF ve FB planlari arasinda PTV icin ortalama doz ve ortalama doz arasinda anlamli bir fark bulunmadigini, OAR'in hafif farkliliklar oldugunu gostermektedir. Boylece FFF foton isini, standart duz kiris olarak karsilastirilabilir dozimetrik kaliteye ulasmistir.

Evaluation of dosimetric impact of Flattening Filter-Free (FFF) Photon Beams in 3D conformal radiotherapy