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

Journal Article · Fri Dec 01 04:00:00 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), Journal Name: IEEE Transactions on Bio-Medical Engineering (Institute of Electrical and Electronics Engineers); (USA) Vol. 36:12; ISSN 0018-9294; ISSN IEBEA
• Country of Publication: United States
• Language: English

Related Subjects

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