Transmission portal in vivo dosimetry by means of the Monte Carlo method and the mathematical programming language MATLAB

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064211%3A_____%2F14%3A%230000436" target="_blank" >RIV/00064211:_____/14:#0000436 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/14:00228848

Výsledek na webu

<a href="https://www.researchgate.net/publication/11513450_Full_forward_Monte_Carlo_calculation_of_portal_dose_from_MLC_collimated_treatment_beams" target="_blank" >https://www.researchgate.net/publication/11513450_Full_forward_Monte_Carlo_calculation_of_portal_dose_from_MLC_collimated_treatment_beams</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/radiopro/2014008" target="_blank" >10.1051/radiopro/2014008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transmission portal in vivo dosimetry by means of the Monte Carlo method and the mathematical programming language MATLAB

Popis výsledku v původním jazyce

Modem radiotherapy has increased demand for dose delivery verification. In this paper transmission portal dosimetry was considered. Portal detectors are a promising tool for 2D dosimetric verification and they are nowadays one of the most widely investigated topics. In this study an Electronic Portal Imaging Device (EPID) was positioned below the patient and the transmission images were captured during the irradiation. The principle of this verification consists of comparison of the acquired images with images predicted on the basis of the entrance fluence map and the tissue distribution in the patient. Such verification is not performed at any radiotherapy department in the Czech Republic. There is no system available for the prediction of transmission portal images. Even worldwide, there is still a lack of commercially available solutions. The aim of this paper is to present a new method of prediction of transmission portal images by means of the Monte Carlo (MC) method and the mathematical programming language MATLAB. The MC code EGSnrc (Electron Gamma Shower) was used. The validity of the presented method was verified by comparison of the predicted images with the acquired ones. The acquisition of EPID images was performed at the Hospital Na Bulovce. Three different validation tests were performed. In the first case, the EPID was irradiated by regular and irregular fields while there was nothing present in the beam path. In the second case, a water-equivalent phantom was added to the EPID and was irradiated by a number of irregular fields.

Název v anglickém jazyce

Transmission portal in vivo dosimetry by means of the Monte Carlo method and the mathematical programming language MATLAB

Popis výsledku anglicky

Modem radiotherapy has increased demand for dose delivery verification. In this paper transmission portal dosimetry was considered. Portal detectors are a promising tool for 2D dosimetric verification and they are nowadays one of the most widely investigated topics. In this study an Electronic Portal Imaging Device (EPID) was positioned below the patient and the transmission images were captured during the irradiation. The principle of this verification consists of comparison of the acquired images with images predicted on the basis of the entrance fluence map and the tissue distribution in the patient. Such verification is not performed at any radiotherapy department in the Czech Republic. There is no system available for the prediction of transmission portal images. Even worldwide, there is still a lack of commercially available solutions. The aim of this paper is to present a new method of prediction of transmission portal images by means of the Monte Carlo (MC) method and the mathematical programming language MATLAB. The MC code EGSnrc (Electron Gamma Shower) was used. The validity of the presented method was verified by comparison of the predicted images with the acquired ones. The acquisition of EPID images was performed at the Hospital Na Bulovce. Three different validation tests were performed. In the first case, the EPID was irradiated by regular and irregular fields while there was nothing present in the beam path. In the second case, a water-equivalent phantom was added to the EPID and was irradiated by a number of irregular fields.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

RADIOPROTECTION

ISSN

0033-8451

e-ISSN

—

Svazek periodika

49

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

7

Strana od-do

205-211

Kód UT WoS článku

000342529900008

EID výsledku v databázi Scopus

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