MAGIC-<i>f</i>Gel in Nuclear Medicine Dosimetry: study in an external beam of Iodine-131

Schwarcke, M; Marques, T; Garrido, C; Nicolucci, Patrícia; Baffa, Oswaldo

doi:10.1088/1742-6596/250/1/012082

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…The advancements in nuclear medicine and cancer treatment using radionuclides require a specific dosimetric knowledge; Monte Carlo simulations are used extensively for experimental study to verify the dose distribution in the new polymer gel dosimeter (MAGIC-f) that is used in nuclear medicine [3]. Schreck et al obtained a dose-response in MAGIC-f gel after exposing it to 131 I source [83]; the sensitivity of transversal relaxation rate (R2) value versus absorbed dose in gel obtained was 0.23 s −1 Gy −1 ; this observation was verified by comparison with Monte Carlo simulation using PENELOPE code and thermoluminescent dosimeter (TLD), the Monte Carlo simulation result was agreed more to MAGIC-f gel dosimetry than TLD, which showed the potential of using MAGIC-f gel in nuclear medicine when three-dimensional dose distribution is required [83]. Silveira et al used MAGIC-f gel for nuclear medicine application along with MRI, where it was used to calculate complex three-dimensional dose distributions of two prostate intensity-modulated radiation therapy (IMRT) treatments which required high-quality assurance [84].…”

Section: Application Of Magic-f Gelmentioning

confidence: 99%

Development and Application of MAGIC-f Gel in Cancer Research and Medical Imaging

2021

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Much of the complex medical physics work requires radiation dose delivery, which requires dosimeters to accurately measure complex three-dimensional dose distribution with good spatial resolution. MAGIC-f polymer gel is one of the emerging new dosimeters widely used in medical physics research. The purpose of this study was to present an overview of polymer gel dosimetry, using MAGIC-f gel, including its composition, manufacture, imaging, calibration, and application to medical physics research. In this review, the history of polymer gel development is presented, along with the applications so far. Moreover, the most important experiments/applications of MAGIC-f polymer gel are discussed to illustrate the behavior of gel on different conditions of irradiation, imaging, and manufacturing techniques. Finally, various future works are suggested based on the past and present works on MAGIC-f gel and polymer gel in general, with the hope that these bits of knowledge can provide important clues for future research on MAGIC-f gel as a dosimeter.

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Section: Application Of Magic-f Gelmentioning

confidence: 99%

Development and Application of MAGIC-f Gel in Cancer Research and Medical Imaging

2021

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“…Para realizar a simulação, foi adotado o mesmo procedimento adotado no estudo de Schwarcke et al 11 . Sendo utilizado como o número de partículas primárias simuladas o valor de 42,45x10 6 eventos primários.…”

Section: Simulação Monteunclassified

Dosimetria 3D do Iodo-131: Estudo com Gel MAGIC-f e Código de Simulação Monte Carlo PENELOPE

et al. 2019

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Os valores dosimétricos obtidos para o tratamento terapêutico utilizando radionuclídeos são resultantes da utilização de modelagem matemática para geometrias de irradiação simples e em geometrias complexas utiliza-se códigos de simulação Monte Carlo. O problema é a validação de seus resultados, uma vez que os instrumentos utilizados permitem avaliações pontuais e não uma avaliação continua da distribuição de dose na região alvo. O presente trabalho visa investigar a possível utilização do gel polimérico MAGIC-f como instrumento de validação do código de simulação Monte Carlo PENELOPE aplicado no estudo dosimétrico de tratamento terapêuticos em medicina nuclear. Para comparar seus resultados foi utilizado um arranjo experimental contendo o gel polimérico MAGIC-f que foi irradiado com uma capsula de Iodo-131, a mesma geometria de irradiação experimental foi simulada utilizando o código de simulação Monte Carlo PENELOPE e seus resultados volumétricos foram comparados. Como mecanismo de comparação quantitativo entre os métodos foi utilizado os seus respectivos valores correspondentes ao coeficiente linear de atenuação, resultando um uma diferença de 8% entre os métodos. Os resultados quantitativos e qualitativos apresentados neste trabalho sugerem a viabilidade na utilização do gel polimérico MAGIC-f como instrumento de validação do código de simulação Monte Carlo PENELOPE no estudo dosimétrico em tratamentos terapêuticos realizados na medicina nuclear.

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“…Especially for use in techniques of high dose rate it can verify the volume dose as a quality control in radiotherapy. The gel dosimeter with formaldehyde (MAGIC-f) has been used in simulation studies as well as in clinical [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

3D Dosimetric Tools in Radiotherapy for Photon Beams

Alva-Sánchez¹,

Pianoschi²

2013

Frontiers in Radiation Oncology

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MAGIC-fGel in Nuclear Medicine Dosimetry: study in an external beam of Iodine-131

Cited by 4 publications

References 6 publications

Development and Application of MAGIC-f Gel in Cancer Research and Medical Imaging

Development and Application of MAGIC-f Gel in Cancer Research and Medical Imaging

Dosimetria 3D do Iodo-131: Estudo com Gel MAGIC-f e Código de Simulação Monte Carlo PENELOPE

3D Dosimetric Tools in Radiotherapy for Photon Beams

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