We aimed to compare different planning techniques and thermo-
luminescence dosimeters (TLD) results for bilateral lung
irradiation. Different plans were made for bilateral lung irradiation
of a pediatric patient. Target volume coverage, critical
organ doses, MU and out-of-field dose were compared. Right
and left lung volumes following receipt of 12 Gy for anteroposterior-
posteroanterior (AP-PA), feKT, intensity-modulated
radiotherapy (IMRT), and feIMRT were 82%, 88%, 82%, 83%
and 80%, 85%, 75%, 80%, respectively. The maximum doses
were found as 1319, 1317, 1618 and 1560 cGy. The volumes of
the heart that received 1000 cGy were determined as 66%, 49%,
27%, and 29%, respectively. The TLD readings of the brain and
thyroid at the feIMRT were higher than the others. In two IMRT
plans, results reduced the heart dose. We achieved better lung
coverage with feKT. When selecting the most appropriate
treatment modality, clinical assessment is very important in
pediatric cases. The late side effects and risks of secondary
malignancy should not be ignored.
Keywords: Bilateral lung irradiation; IMRT; thermo-luminescence dosimeters; Wilms' tumor
