Comparison of I‐125 sources used for permanent interstitial implants

Heintz, B; Wallace, Robert E.; Hevezi, James M.

doi:10.1118/1.1359246

Cited by 55 publications

(55 citation statements)

References 27 publications

(64 reference statements)

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“…Therefore, characteristic radiation photons can not travel far before they are absorbed and they are usually ignored in the dosimetry calculations and we also adopted this approach. [61] The typical mesh size we used in our calculations is 0.25cm x 0.25cm x 0.25cm. 40 x 40 x 40 meshes are needed to a cover 10cm x 10cm x 10cm volume.…”

Section: Volumetric Source Results -Model 2301mentioning

confidence: 99%

Integral-transport-based deterministic brachytherapy dose calculations

Zhou

Inanc²

2002

Phys. Med. Biol.

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We developed a transport-equation-based deterministic algorithm for computing three-dimensional brachytherapy dose distributions.The deterministic algorithm has been based on the integral transport equation. The algorithm provided us with the capability of computing dose distributions for multiple isotropic point and/or volumetric sources in a homogenous/heterogeneous medium. The algorithm results have been benchmarked against the results from the literature and MCNP results for isotropic point sources and volumetric sources.

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Section: Volumetric Source Results -Model 2301mentioning

confidence: 99%

Integral-transport-based deterministic brachytherapy dose calculations

Zhou

Inanc²

2002

Phys. Med. Biol.

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“…The dose to the sensitive organs should not exceed their tolerance levels [7]. In various studies, 125 I, 103 Pd, 169 Yb, and 192 Ir brachytherapy sources were evaluated in prostate brachytherapy [2,4,8,9]. It should be noted that in addition to 125 I and 103 Pd brachytherapy sources, there are also high-dose-rate (HDR) radionuclides ( 192 Ir) that are routinely used in prostate brachytherapy.…”

Section: Purposementioning

confidence: 99%

A comparison study on various low energy sources in interstitial prostate brachytherapy

Bakhshabadi¹,

Ghorbani²,

Khosroabadi³

et al. 2016

jcb

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Purpose: Low energy sources are routinely used in prostate brachytherapy. 125 I is one of the most commonly used sources. Low energy 131 Cs source was introduced recently as a brachytherapy source. The aim of this study is to compare dose distributions of 125 I, 103 Pd, and 131 Cs sources in interstitial brachytherapy of prostate.Material and methods: ProstaSeed 125 I brachytherapy source was simulated using MCNPX Monte Carlo code. Additionally, two hypothetical sources of 103 Pd and 131 Cs were simulated with the same geometry as the ProstaSeed 125 I source, while having their specific emitted gamma spectra. These brachytherapy sources were simulated with distribution of forty-eight seeds in a phantom including prostate. The prostate was considered as a sphere with radius of 1.5 cm. Absolute and relative dose rates were obtained in various distances from the source along the transverse and longitudinal axes inside and outside the tumor. Furthermore, isodose curves were plotted around the sources.Results: Analyzing the initial dose profiles for various sources indicated that with the same time duration and air kerma strength, 131 Cs delivers higher dose to tumor. However, relative dose rate inside the tumor is higher and outside the tumor is lower for the 103 Pd source.Conclusions: The higher initial absolute dose in cGy/(h.U) of 131 Cs brachytherapy source is an advantage of this source over the others. The higher relative dose inside the tumor and lower relative dose outside the tumor for the 103 Pd source are advantages of this later brachytherapy source. Based on the total dose the 125 I source has advantage over the others due to its longer half-life.

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“…• UroMed Corporation -Bebig GmbH (Alemanha) Symmetra I-125.S06: Cápsula de titânio selada a laser, contendo no seu interior fio de ouro radio-opaco, e uma camada de cerâmica com iodo-125 (30) ;…”

Section: Sementes De Iodo-125 Encontradas No Mercadounclassified

“…• GE -Amersham (EUA) OncoSeed 6711: Núcleo de prata radio-opaco, onde o iodo-125 está adsorvido e a cápsula externa é de titânio, com selagem a laser (30) ;…”

Section: Sementes De Iodo-125 Encontradas No Mercadounclassified

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Comparação entre métodos de fixação de iodo radioativo em substrato de prata para confecção de fontes utilizadas em Braquiterapia

Souza¹

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Comparison of I‐125 sources used for permanent interstitial implants

Cited by 55 publications

References 27 publications

Integral-transport-based deterministic brachytherapy dose calculations

Integral-transport-based deterministic brachytherapy dose calculations

A comparison study on various low energy sources in interstitial prostate brachytherapy

Comparação entre métodos de fixação de iodo radioativo em substrato de prata para confecção de fontes utilizadas em Braquiterapia

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