Optical-thermal simulation of tonsillar tissue irradiation

Lasers in Surgery and Medicine
R K ShahS M Shapshay

Abstract

Despite laser applications targetted toward tonsillar tissue, there has been no characterization of underlying optical and thermal events during laser irradiation of tonsillar tissue. The optical properties of canine and human tonsils were determined at 805 nm (diode laser) and 1,064 nm (Nd:YAG laser). An optical-thermal simulation was developed to predict the temperature rise in irradiated human tonsils. The optical properties of human and canine tonsillar tissue are similar at both wavelengths. The optical-thermal simulation was validated and predicts that at 10 W and 1 minute of irradiation, the heat will be contained within the human tonsil. The diode laser causes more superficial heating than the Nd:YAG laser. The safety of irradiating human tonsils was shown. The diode laser is superior to the Nd:YAG laser because less heat affects collateral structures. The optical-thermal simulation detailed in this study can be used to predict the temperature rise in tissues undergoing irradiation.

References

Dec 1, 1989·IEEE Transactions on Bio-medical Engineering·S T FlockM S Patterson
Jul 1, 1995·Computer Methods and Programs in Biomedicine·L WangL Zheng
Jan 1, 1994·Lasers in Surgery and Medicine·B AnvariE Orihuela
Dec 1, 1996·Archives of Otolaryngology--head & Neck Surgery·M S VolkS M Shapshay
Jan 9, 1998·Computer Methods and Programs in Biomedicine·L WangL Zheng
Oct 3, 2000·Lasers in Surgery and Medicine·R K ShahS M Shapshay
Feb 1, 1993·Applied Optics·J W PickeringM J van Gemert

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Citations

Aug 22, 2009·IEEE Transactions on Bio-medical Engineering·Jianhua ZhouYuwen Zhang
Aug 3, 2005·Journal of Biomechanical Engineering·Jianhua ZhouAibing Yu
Feb 13, 2019·Acta otorhinolaryngologica Italica : organo ufficiale della Società italiana di otorinolaringologia e chirurgia cervico-facciale·A N KassabS Mekawy
Oct 2, 2019·Lasers in Surgery and Medicine·Brenda Quistián-VázquezFrancisco G Pérez-Gutiérrez

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