Finite element analysis of controlled laser coagulation experiments /
A mathematical model to predict the effect of laser and
| Main Author: | |
|---|---|
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
|
| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | A mathematical model to predict the effect of laser and A two-layered set-up of gel and tissue allowed for comparing and absorption coefficient about their reported and and coagulation process was modeled using a non-linear calculated values indicate their sensitivity on coagulation coagulation behavior of the tissue. Accurate knowledge of coefficients, laser spot-size and absorption coefficient in distfibutionwasmodeledusinganapproximationofthelightdiffusion effects based on the Arrhenius rate model. The constant essential for mathematical models to predict reliable finite-element model. The light interaction on beef liver is presented. The heat transfer our results with previous experiments carried out under outcomes. procedure, allowing a slow, steady damage front progression. similar conditions. Variations of the damage coefficients surface temperature provided a control over the coagulation temperature conditions using a modulated laser source term. the optical properties and kinetic rate constants is The parametric study of variations in the damage rate theory. Thermal feedback allowed for constant surface this study indicate a significant variation in predicting the tissue parameters on the zone of thermal injury by laser |
|---|---|
| Item Description: | "Major subject: Bioengineering". Vita. |
| Physical Description: | xi, 68 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 60-66. |