Modeling of conductive and convective heat transfers in retinal laser treatments

Julien Sandeau; Georges Caillibotte; Jochen Kandulla; Reginald Birngruber; Gabriela Apiou-Sbirlea

doi:10.1117/12.673494

Modeling of conductive and convective heat transfers in retinal laser treatments

Julien Sandeau^*, Georges Caillibotte, Jochen Kandulla, Reginald Birngruber, Gabriela Apiou-Sbirlea

^*Corresponding author for this work

Institute of Biomedical Optics

Abstract

Tumor thermo treatment such as photodynamic therapy (PDT) or transpupillary thermotherapy (TTT) deal with long term and large laser spot exposures. The induced temperature increase is not exactly known [1]. Under these conditions convective heat transfers due to the blood flow in the choroid and the choriocapillaris must be considered in addition to the usually calculated heat conduction. From an existing analytical model defining a unique convective term for the whole fundus irradiated with Gaussian irradiance distribution lasers [2], we developed a numerical one allowing a precise modelling of convection and calculating heating evolution and temperature profiles of the fundus of the eye. The aim of this study is to present the modelling and several comparisons between experimental results [3] and numerical ones concerning the convective heat transfers inside the fundus of the eye.

Original language	English
Title of host publication	Ophthalmic Technologies XVI
Editors	Fabrice Manns, Per G. Söderberg, Arthur Ho
Number of pages	9
Publisher	SPIE
Publication date	07.03.2006
Article number	61381A
ISBN (Print)	978-081946181-0
DOIs	https://doi.org/10.1117/12.673494
Publication status	Published - 07.03.2006
Event	Ophthalmic Technologies XVI - San Jose, United States Duration: 21.01.2006 → 24.01.2006 Conference number: 67565

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Academic Focus: Biomedical Engineering

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Sandeau, J., Caillibotte, G., Kandulla, J., Birngruber, R., & Apiou-Sbirlea, G. (2006). Modeling of conductive and convective heat transfers in retinal laser treatments. In F. Manns, P. G. Söderberg, & A. Ho (Eds.), Ophthalmic Technologies XVI [61381A] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6138). SPIE. https://doi.org/10.1117/12.673494

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title = "Modeling of conductive and convective heat transfers in retinal laser treatments",

abstract = "Tumor thermo treatment such as photodynamic therapy (PDT) or transpupillary thermotherapy (TTT) deal with long term and large laser spot exposures. The induced temperature increase is not exactly known [1]. Under these conditions convective heat transfers due to the blood flow in the choroid and the choriocapillaris must be considered in addition to the usually calculated heat conduction. From an existing analytical model defining a unique convective term for the whole fundus irradiated with Gaussian irradiance distribution lasers [2], we developed a numerical one allowing a precise modelling of convection and calculating heating evolution and temperature profiles of the fundus of the eye. The aim of this study is to present the modelling and several comparisons between experimental results [3] and numerical ones concerning the convective heat transfers inside the fundus of the eye.",

author = "Julien Sandeau and Georges Caillibotte and Jochen Kandulla and Reginald Birngruber and Gabriela Apiou-Sbirlea",

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Sandeau, J, Caillibotte, G, Kandulla, J, Birngruber, R & Apiou-Sbirlea, G 2006, Modeling of conductive and convective heat transfers in retinal laser treatments. in F Manns, P G. Söderberg & A Ho (eds), Ophthalmic Technologies XVI., 61381A, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 6138, SPIE, Ophthalmic Technologies XVI , San Jose, California, United States, 21.01.06. https://doi.org/10.1117/12.673494

Modeling of conductive and convective heat transfers in retinal laser treatments. / Sandeau, Julien; Caillibotte, Georges; Kandulla, Jochen et al.

Ophthalmic Technologies XVI. ed. / Fabrice Manns; Per G. Söderberg; Arthur Ho. SPIE, 2006. 61381A (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6138).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

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T1 - Modeling of conductive and convective heat transfers in retinal laser treatments

AU - Sandeau, Julien

AU - Caillibotte, Georges

AU - Kandulla, Jochen

AU - Birngruber, Reginald

AU - Apiou-Sbirlea, Gabriela

N1 - Conference code: 67565

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N2 - Tumor thermo treatment such as photodynamic therapy (PDT) or transpupillary thermotherapy (TTT) deal with long term and large laser spot exposures. The induced temperature increase is not exactly known [1]. Under these conditions convective heat transfers due to the blood flow in the choroid and the choriocapillaris must be considered in addition to the usually calculated heat conduction. From an existing analytical model defining a unique convective term for the whole fundus irradiated with Gaussian irradiance distribution lasers [2], we developed a numerical one allowing a precise modelling of convection and calculating heating evolution and temperature profiles of the fundus of the eye. The aim of this study is to present the modelling and several comparisons between experimental results [3] and numerical ones concerning the convective heat transfers inside the fundus of the eye.

AB - Tumor thermo treatment such as photodynamic therapy (PDT) or transpupillary thermotherapy (TTT) deal with long term and large laser spot exposures. The induced temperature increase is not exactly known [1]. Under these conditions convective heat transfers due to the blood flow in the choroid and the choriocapillaris must be considered in addition to the usually calculated heat conduction. From an existing analytical model defining a unique convective term for the whole fundus irradiated with Gaussian irradiance distribution lasers [2], we developed a numerical one allowing a precise modelling of convection and calculating heating evolution and temperature profiles of the fundus of the eye. The aim of this study is to present the modelling and several comparisons between experimental results [3] and numerical ones concerning the convective heat transfers inside the fundus of the eye.

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Modeling of conductive and convective heat transfers in retinal laser treatments

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