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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:44 |
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Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Biophysics; Medical Physics
Title:
Evaluation of the dosimetric impact of rotational errors in the radiotherapy treatment of nasopharyngeal cancer
Authors:
Daria-Maria FLOREA (1), Mihai SUDITU (2)
Affiliation:
1) University of Bucharest, Faculty of Physics
2) Amethyst Radiotherapy Center Otopeni
E-mail
daria.maria.florea29@gmail.com
Keywords:
Nasopharyngeal cancer, dosimetric impact, rotational error, radiotherapy
Abstract:
The study aimed to retrospectively evaluate the dosimetric impact of rotational patient positioning errors when using the VMAT irradiation technique accompanied by IGRT in treating nasopharyngeal cancer.
The study's objectives were to evaluate the impact that rotational set-up errors have on the radiation dose distribution in the radiotherapy treatment of nasopharyngeal cancer, and the advantages brought by using a six degrees of freedom (6DoF) treatment table that allows the correction of these errors.
Ten patients with nasopharyngeal cancer were included in the study, treated with the volumetric modulated arc therapy (VMAT) irradiation technique accompanied by image-guided radiotherapy (IGRT).
References:
1. de Boer H. C., van Sörnsen de Koste J. R., Creutzberg C. L, Electronic portal image assisted reduction of systematic set- up errors in head and neck irradiation, Radia Oncol Biol Phys, 61:299–308, 2021
2. Kam M. K., Chau R. M., Suen J., et al., Intensity-modulated radiotherapy in nasopharyngeal carcinoma: dosimetric advantage over conventional plans and feasibility of dose escalation, Int J Radiat Oncol Biol Phys, 56(1):145–157, 2003
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