Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy

M. Carrara; G. Gambarini; M. Borroni; S. Tomatis; A. Negri; L. Pirola; A. Cerrotta; C. Fallai; G. Zonca

doi:10.1016/j.nima.2010.08.054

Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy

M. Carrara, G. Gambarini, M. Borroni, S. Tomatis, A. Negri, L. Pirola, A. Cerrotta, C. Fallai, G. Zonca

Research output: Contribution to journal › Article › peer-review

Abstract

Radiation doses delivered to the patient during high dose rate brachytherapy treatments are susceptible to many inaccuracies and may not accurately match the planned doses. Novel Fricke gel dosimetric catheters (FGDC) were developed in the laboratory to be used for in vivo measurements of high dose rate brachytherapy treatments and represent possible tools to increase treatment accuracy. In this study, the dosimetric compound adopted to achieve FGDC was studied in terms of dose sensitivity and linearity, and some potentialities and limits of its application were investigated. Results show that at doses higher than 400 cGy, the dosimeter response is linear with the delivered dose until a saturation effect is observed at doses higher than 2800 cGy. However, saturation is reached at lower doses as well with dose rates higher than 400 cGy/min.

Original language	English
Pages (from-to)	888-890
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	652
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2010.08.054
Publication status	Published - Oct 1 2011

Keywords

1D dose measurement
Gel dosimetry
HDR brachytherapy dosimetry
In vivo dosimetry

ASJC Scopus subject areas

Instrumentation
Nuclear and High Energy Physics

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10.1016/j.nima.2010.08.054

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Carrara, M., Gambarini, G., Borroni, M., Tomatis, S., Negri, A., Pirola, L., Cerrotta, A., Fallai, C., & Zonca, G. (2011). Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 652(1), 888-890. https://doi.org/10.1016/j.nima.2010.08.054

Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy. / Carrara, M.; Gambarini, G.; Borroni, M.; Tomatis, S.; Negri, A.; Pirola, L.; Cerrotta, A.; Fallai, C.; Zonca, G.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 652, No. 1, 01.10.2011, p. 888-890.

Research output: Contribution to journal › Article › peer-review

Carrara, M, Gambarini, G, Borroni, M, Tomatis, S, Negri, A, Pirola, L, Cerrotta, A , Fallai, C & Zonca, G 2011, 'Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 652, no. 1, pp. 888-890. https://doi.org/10.1016/j.nima.2010.08.054

Carrara M, Gambarini G, Borroni M, Tomatis S, Negri A, Pirola L et al. Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Oct 1;652(1):888-890. https://doi.org/10.1016/j.nima.2010.08.054

Carrara, M. ; Gambarini, G. ; Borroni, M. ; Tomatis, S. ; Negri, A. ; Pirola, L. ; Cerrotta, A. ; Fallai, C. ; Zonca, G. / Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 652, No. 1. pp. 888-890.

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abstract = "Radiation doses delivered to the patient during high dose rate brachytherapy treatments are susceptible to many inaccuracies and may not accurately match the planned doses. Novel Fricke gel dosimetric catheters (FGDC) were developed in the laboratory to be used for in vivo measurements of high dose rate brachytherapy treatments and represent possible tools to increase treatment accuracy. In this study, the dosimetric compound adopted to achieve FGDC was studied in terms of dose sensitivity and linearity, and some potentialities and limits of its application were investigated. Results show that at doses higher than 400 cGy, the dosimeter response is linear with the delivered dose until a saturation effect is observed at doses higher than 2800 cGy. However, saturation is reached at lower doses as well with dose rates higher than 400 cGy/min.",

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AU - Tomatis, S.

AU - Negri, A.

AU - Pirola, L.

AU - Cerrotta, A.

AU - Fallai, C.

AU - Zonca, G.

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Characterisation of a Fricke gel compound adopted to produce dosimetric catheters for in vivo dose measurements in HDR brachytherapy

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Keywords

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