UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2024-11-23 18:09

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Conference: Bucharest University Faculty of Physics 2014 Meeting


Section: Biophysics; Medical Physics


Title:
A retrospective study of uterin area high dose brachytherapy planned using catheter reconstruction


Authors:
Lucia Elena ENCIU(1)


Affiliation:
1) Faculty of Physics, University of Bucharest, POBox MG 11, Magurele


E-mail
enciu_lucia@yahoo.com


Keywords:
Brachytherapy, catheter, dose distribution, organs of risk


Abstract:
Intracavitary brachytherapy technique is practiced for treating different forms of cancer of uterin area, either alone or in combination with external beam radiotherapy. High dose rate brachytherapy treatment planning often involves optimization methods to calculate dwell position and dwell times of the radioactive source along specified afterloading catheters. The purpose of this study is to compare the dose distribution and the dose obtained to organs of risk from the first application to the second application. This is a retrospective study of 50 patients with high dose rate brachytherapy planned using catheter reconstruction and geometric optimization and treated with a dose of 5 Gy to 7.5 Gy per fraction. Dose obtained to organs of risk was analyzed. We obtained better results in the second application, which could mean that we have the local control of the tumour.