A theoretical study of the effect of optical properties in laser ablation of tissue

Journal Article · Fri Dec 01 00:00:00 EST 1989 · IEEE Transactions on Bio-Medical Engineering (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/10.42112· OSTI ID:6982814

Rastegar, S; Motamedi, M; Welch, A J; Hayes, L J

The role of optical properties in the distribution of laser light and the resulting thermodynamic processes in biological tissue is studied from a theoretical perspective. Light distribution is modeled by a discrete ordinate method and heat transfer and ablation is modeled by an immobilized finite element method. The effect of parametric variation of absorption, scattering anisotropicity on the dynamics of the ablation process is examined. The manifestation of higher than the ablation threshold temperature in the subsurface tissue is observed and discussed. Results indicate significant differences in the ablation behavior which may have important clinical implications.

• OSTI ID: 6982814
• Journal Information: IEEE Transactions on Bio-Medical Engineering (Institute of Electrical and Electronics Engineers); (USA), Vol. 36:12; ISSN 0018-9294
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
LASER RADIATION
BIOLOGICAL EFFECTS
ABSORPTION
BIOLOGICAL MODELS
HEAT
OPTICAL PROPERTIES
SURGERY
THERMODYNAMICS
ELECTROMAGNETIC RADIATION
ENERGY
MEDICINE
PHYSICAL PROPERTIES
RADIATIONS
560400* - Other Environmental Pollutant Effects