Title Development of the slab phantom for the measurements of irradiation doses in superficial X-ray therapy /
Translation of Title Plokštelinio fantomo kūrimas ir jo taikymas spinduliuotės dozėms matuoti trumpažidinėje Rentgeno terapijoje.
Authors Paukštytė, Severina
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Pages 60
Keywords [eng] slab phantom ; superficial radiotherapy ; effective dose
Abstract [eng] Skin cancer is one of the most often registered cancer types in the world. In 2018 over 91 000 new cases of skin cancer have been reported (it contains 5.3% of all types of the cancer cases). Registered skin cancer cases in Lithuania contribute with 1 - 5 % to total number of all cancerous diseases. For this oncological disease treatment is usually used superficial X-ray therapy. Evaluation and reduction of if possible of radiation to the critical organs and normal tissues thus decreasing the risk of probability of secondary cancer is a very important issue controlling the disease process. In order to asses irradiation doses superficial radiotherapy treatment was performed to irradiate a slab phantom, recreated from the real patient computed tomography images. 2D film dosimetry was used for the assessment of doses and evaluation of irradiation dose dependency on irradiation angle. It was found that changing irradiation beam angle it is possible to reduce the dose to the critical organs depending their location. Performed investigation revealed that treatment beam angle is one of the optimization criteria ensuring also the quality during the superficial radiotherapy treatment of buccal skin cancer.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2018