Baş-boyun radyoterapisinde 3 boyutlu bilgisayarlı planlama ile dozimetrik sürecin randofantom üzerinde termolüminisans dozimetre ile kontrolü















































nerves, the calculated and measured doses were in the acceptable level. But the dose of lenses were slightly out of the range (%5,88). The measured doses from enter and exit points were not more or less than %3 of CTPS data.
At the boost level lateral photon and electron fields junction point doses measured as enter and exit doses and dose difference between the CTPS and the TLD were %1,35 and %1,41. Medulla spinalis were accepted as critical organ at the boost level and measured doses were between 6,81 cGy to 13,8 cGy . On the other hand, CTPS doses were between 6,8 cGy to 14 cGy. The usual critical organs as brain stem, middle ear and optical nevre dose difference from the CTPS were found below the %3. The main target volume, hypopharnx doses, that wanted to cover whole boost isodoses, measured as 213,3 cGy and 215,4 cGy. This doses were calculated with CTPS as 216,3 cGy and 216,8 cGy.
In this study, even if, the difference between the calculated and measured doses were in the acceptable margin, controlling the algoritm that CTPS used to calculate the dosimetric process and treatment period with TLD dosimeters is useful for all levels.
Keywords: Head and Neck Radiotherapy, Thermoluminescence Dosimeter (TLD), Rando Fantom, Computerized Treatment Planning System (CTPS)
vii



10. SAYFAYA BENZER SAYFALAR

Prostat radyoterapisinde 3 boyutlu bilgisayarlı planlama ve dozimetrik sürecin randofantom üzerinde tld dozimetre ile kontrolü - Sayfa 9
SUMMARY In prostate comparing of measured doses from TLD dosimeters with 3D computerized radiotherapy planning. Purpose of this study is to control dosimetric process for the 3D computerized radiotherapy planning (CTPS) of prostate with comparing of measured doses from thermoluminescence (TLD) dosimeters experimentally. In this study is planed and performed Uludağ University Medical Faculty Rad...
Meme kanseri radyoterapisinde 3 boyutlu bilgisayarlı planlama ve dozimetrik sürecin randofantom üzerinde termolüminesans dozimetri ile kontrolü - Sayfa 8
SUMMARY Control of dosimetric process and 3D computer-based treatment planning system with thermoluminescence dosimeters (TLD) at the randophantom, in breast radiotherapy. The purpose of this study is to compare the target volume and critical organ doses which are obtained from two different methods (source-skin distance (SSD) and sourceaxis distance (SAD)) at the left breast radiotherapy with e...

10. SAYFADAKI ANAHTAR KELIMELER

this
were
dose
with
other
treatment


10. SAYFA ICERIGI

nerves, the calculated and measured doses were in the acceptable level. But the dose of lenses were slightly out of the range (%5,88). The measured doses from enter and exit points were not more or less than %3 of CTPS data.
At the boost level lateral photon and electron fields junction point doses measured as enter and exit doses and dose difference between the CTPS and the TLD were %1,35 and %1,41. Medulla spinalis were accepted as critical organ at the boost level and measured doses were between 6,81 cGy to 13,8 cGy . On the other hand, CTPS doses were between 6,8 cGy to 14 cGy. The usual critical organs as brain stem, middle ear and optical nevre dose difference from the CTPS were found below the %3. The main target volume, hypopharnx doses, that wanted to cover whole boost isodoses, measured as 213,3 cGy and 215,4 cGy. This doses were calculated with CTPS as 216,3 cGy and 216,8 cGy.
In this study, even if, the difference between the calculated and measured doses were in the acceptable margin, controlling the algoritm that CTPS used to calculate the dosimetric process and treatment period with TLD dosimeters is useful for all levels.
Keywords: Head and Neck Radiotherapy, Thermoluminescence Dosimeter (TLD), Rando Fantom, Computerized Treatment Planning System (CTPS)
vii







single.php