Bibliographic citations
Cardenas, J., (2023). Desarrollo de un sistema de cálculo independiente en braquiterapia HDR para una unidad microSelectron® [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/26909
Cardenas, J., Desarrollo de un sistema de cálculo independiente en braquiterapia HDR para una unidad microSelectron® [Tesis]. PE: Universidad Nacional de Ingeniería; 2023. http://hdl.handle.net/20.500.14076/26909
@mastersthesis{renati/1751704,
title = "Desarrollo de un sistema de cálculo independiente en braquiterapia HDR para una unidad microSelectron®",
author = "Cardenas Chavez, Jose Antonio",
publisher = "Universidad Nacional de Ingeniería",
year = "2023"
}
Despite the fact Brachytherapy dose calculations accuracy has been verified during commissioning procedure and quality control tests, which are done monthly and/or annually, it exists anyway the mistake possibility at each treatment [1]. According to this, a completely automated software application to recalculate the absorbed dose which a TPS (treatmentplanning system) calculates on dosimetric interest points was developed. The treatment unit is a microSelectron® Digital (HDR-v3) charged with an 192Ir source, with TPS Oncentra® 4.3. The first task to solve was to decodify and import DICOM (digital imaging and Communications in medicine) treatment file, that usually is encrypted; Python® programming language was used to achieve it. TG 43 [2] dose rate equation was completely modeled, for 1D and 2D calculation formalism, taking into account Lachaine et al.s’ [1] proposal for the second one. Database has contained 100 treatment plannings. Comparing percentage variation between calculations made by application respect to TPS, it was found that 97.15% from 1650 calculation points has fitted a window range of ±10% for 1D formalism, while for the 2D one this improved to ±3% range for 97.03% from total points. As the conclusion of this study it can be said that application developed, named as HyDRax is acceptable for clinical use at 2D modeling, because no point passes the ±20% threshold established [3].
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