The neodymium yttrium aluminium garnet ( Nd-YAG) laser was applied for interstitial thermotherapy under low power of 2 W, 5 W and 10 W respectively, and for heating time of 800 s, 800 s and 600 s respectively, meanwhile the control group was established.
The temperature response of several typical thermal laser applications were simulated, such as the typical scatter dominating Nd:YAG laser coagulating the liver in the Laser Interstitial Thermotherapy (LITT), Nd:YAG laser irradiating the in vivo murine skin, typical absorption dominating CO2 laser irradiating in vitro porcine tissue, CO2 laser irradiating in vivo murine skin and the three layers model of HeNe laser irradiating in vivo human skin.
Besides these routine applications of lasers, laser interstitial thermotherapy (LITT) and photodynamic therapy (PDT) of brain tumours are still in the experimental stage.
In addition to radiofrequency ablation, microwave coagulation (MCT) and laser-induced interstitial thermotherapy (LITT) are being used clinically to treat patients with liver cancers.
A two-dimensional model was developed to model the effects of dynamic changes in the physical properties on tissue temperature and damage to simulate laser-induced interstitial thermotherapy (LITT) treatment procedures with temperature monitoring.
LaserTissue Interactions is written in English by Dr.Markolf H.Niemz.In this book,the content of the lasertissue interactions was discussed and lasertissue interactions provides a thorough description of the fundamentals and applications in this field.Basic conceptions such as optical and thermal properties of tissue,various types of tissue ablation,and optical breakdown with related effects are treated in detail.Special attention is given to mathematical tools,Monte Carlo simulations,KubelkaMunk theory...
During laser-induced interstitial thermotherapy,the laser-tissue interaction includes two aspects:one is photon migration,the other is bioheat transfer.The distribution of photons and energy in tissue can be calculated with Monte-Carlo simulation based on transfer theory.With Pennes equation and Weinbaum & Jiji model,temperature distribution and changes in tissue could be described.It is very important to unite the both models.Dynamical process of coagulation is monitored through changes of the ...
During laser-induced interstitial thermotherapy,the laser-tissue interaction includes two aspects:Photon migration in tissue and bioheat transfer.With theory of photon migration,distrbution of photon and energy in tissue could be calculated.Both analytical method and Monte~Carlo simulation are discussed based on diffusion theory.Temperature distribution and changes in tissue could be described with bioheat transfer models.Consider the biological tissue properties,various macro and micro bioheat ...