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Paper Information

Journal:   ARCHIVES OF IRANIAN MEDICINE   MARCH 2016 , Volume 19 , Number 3; Page(s) 186 To 191.
 
Paper: 

MONTE CARLO DETERMINATION OF DOSIMETRIC PARAMETERS OF A NEW 125I BRACHYTHERAPY SOURCE ACCORDING TO AAPM TG-43 (U1) PROTOCOL

 
 
Author(s):  BAGHANI HAMIDREZA*, LOHRABIAN VAHID, AGHAMIRI MAHMOUD REZA, ROBATJAZI MOSTAFA
 
* RADIATION MEDICINE DEPARTMENT, SHAHID BEHESHTI UNIVERSITY, DANSHJOO ST, VELENJAK 1983963113, TEHRAN, IRAN
 
Abstract: 

BACKGROUND: 125I is one of the important sources frequently used in brachytherapy. Up to now, several different commercial models of this source type have been introduced to the clinical radiation oncology applications. Recently, a new source model, IrSeed-125, has been added to this list. The aim of the present study is to determine the dosimetric parameters of this new source model based on the recommendations of TG-43 (U1) protocol using Monte Carlo simulation.
METHODS: The dosimetric characteristics of Ir-125 including dose rate constant, radial dose function, 2D anisotropy function and 1D anisotropy function were determined inside liquid water using MCNPX code and compared to those of other commercially available iodine sources.
RESULTS: The dose rate constant of this new source was found to be 0.983+0.015 cGyh-1U-1 that was in good agreement with the TLD measured data (0.965 cGyh-1U-1). The 1D anisotropy function at 3, 5, and 7 cm radial distances were obtained as 0.954, 0.953 and 0.959, respectively.
CONCLUISON: The results of this study showed that the dosimetric characteristics of this new brachytherapy source are comparable with those of other commercially available sources. Furthermore, the simulated parameters were in accordance with the previously measured ones. Therefore, the Monte Carlo calculated dosimetric parameters could be employed to obtain the dose distribution around this new brachytherapy source based on TG-43 (U1) protocol.

 
Keyword(s): BRACHYTHERAPY, DOSIMETRIC CHARACTERISTICS, IRSEED-125, MONTE CARLO SIMULATION, TG-43 (U1)
 
 
References: 
 
Citations: 
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APA: Copy

BAGHANI, H., & LOHRABIAN, V., & AGHAMIRI, M., & ROBATJAZI, M. (2016). MONTE CARLO DETERMINATION OF DOSIMETRIC PARAMETERS OF A NEW 125I BRACHYTHERAPY SOURCE ACCORDING TO AAPM TG-43 (U1) PROTOCOL. ARCHIVES OF IRANIAN MEDICINE, 19(3), 186-191. https://www.sid.ir/en/journal/ViewPaper.aspx?id=511260



Vancouver: Copy

BAGHANI HAMIDREZA, LOHRABIAN VAHID, AGHAMIRI MAHMOUD REZA, ROBATJAZI MOSTAFA. MONTE CARLO DETERMINATION OF DOSIMETRIC PARAMETERS OF A NEW 125I BRACHYTHERAPY SOURCE ACCORDING TO AAPM TG-43 (U1) PROTOCOL. ARCHIVES OF IRANIAN MEDICINE. 2016 [cited 2021July25];19(3):186-191. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=511260



IEEE: Copy

BAGHANI, H., LOHRABIAN, V., AGHAMIRI, M., ROBATJAZI, M., 2016. MONTE CARLO DETERMINATION OF DOSIMETRIC PARAMETERS OF A NEW 125I BRACHYTHERAPY SOURCE ACCORDING TO AAPM TG-43 (U1) PROTOCOL. ARCHIVES OF IRANIAN MEDICINE, [online] 19(3), pp.186-191. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=511260.



 
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