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A model for thermal ablation of biological tissue using laser radiation
Author(s) -
Partovi F.,
Izatt J. A.,
Cothren R. M.,
Kittrell C.,
Thomas J. E.,
Strikwerda S.,
Kramer J. R.,
Feld M. S.
Publication year - 1987
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900070202
Subject(s) - ablation , evaporation , laser , thermal , laser ablation , mechanics , radiation , materials science , optics , chemistry , thermodynamics , physics , engineering , aerospace engineering
We present a theory of thermal laser ablation based on the heat equation and on an energy balance equation derived from it. Ablation is assumed to be brought about by the heating and evaporation of tissue water. The model is three‐dimensional, and scattering and the water‐steam phase transition are explicitly taken into account. The model predicts threshold parameters and a steady‐state ablation velocity in terms of the optical and thermal properties of the tissue and the laser beam intensity and spot diameter.