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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:30 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Biophysics; Medical Physics
Title:
The improvement of dose distribution using maximum allowed of catheter describing points for ring applicator, by Nucletron
Authors:
Lucia Elena ENCIU(1,2,3), Radu MUTIHAC(1)
Affiliation:
1) University of Bucharest, Faculty of Physics, Magurele, Romania
2) The Institute of Oncology ,, Prof. dr. Al. Trestioreanu”, Bucharest, Romania
3) Coltea Clinical Hospital, Bucharest, Romania
E-mail
enciu_lucia@yahoo.com
Keywords:
High dose rate brachytherapy, catheter describing points, ring applicator, organs of risk
Abstract:
The purpose of this study is to improve dose distribution using maximum allowed of catheter describing points for ring applicator, by Nucletron. Sixty patients were treated using high dose rate brachytherapy. The first catheter reconstruction of the ring applicator was made using less reconstruction points then the second one, for the same ring applicator. In this study were used rings with different radius, angles and dimensions. Improve version of the main treatment plan, made with an increase number of reconstruction catheter points, decreases the dose to organs of risk, bladder and rectum, with 2%-5%. This study shows the fact that if we use the maximum number of possible points to describe the catheter, the dose to organs of risk decrease.
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