Numerical Study on the Thawing Process of Biological Tissue Induced by Laser Irradiation

2005 ◽  
Vol 127 (3) ◽  
pp. 416 ◽  
Author(s):  
Jing Liu
Keyword(s):  
Laser Irradiation ◽  
Biological Tissue ◽  
Numerical Study ◽  
Thawing Process

Pulsed infrared laser irradiation of biological tissue: effect of pulse duration and repetition rate

1993 ◽  
Author(s):  
E. Duco Jansen ◽  
Ravi K. Chundru ◽  
Salim A. Samanani ◽  
Todd A. Tibbetts ◽  
Ashley J. Welch
Keyword(s):  
Laser Irradiation ◽  
Pulse Duration ◽  
Biological Tissue ◽  
Repetition Rate ◽  
Infrared Laser ◽  
Infrared Laser Irradiation ◽  
Tissue Effect

Axisymmetric numerical study on thermal response of composites to laser irradiation

2014 ◽  
Vol 26 (9) ◽  
pp. 91024
Author(s):  
张家雷 Zhang Jialei ◽  
王伟平 Wang Weiping ◽  
刘仓理 Liu Cangli
Keyword(s):  
Laser Irradiation ◽  
Numerical Study ◽  
Thermal Response

Temperature rise in biological tissue during Nd:YAG laser irradiation

1985 ◽  
Vol 5 (2) ◽  
pp. 75-82 ◽  
Author(s):  
R. Marchesini ◽  
S. Andreola ◽  
H. Emanuelli ◽  
E. Melloni ◽  
A. Schiroli ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Temperature Rise ◽  
Nd:Yag Laser ◽  
Biological Tissue

C212 Numerical Study on Thawing Process of Cryopreserved Tissues

2011 ◽  
Vol 2011 (0) ◽  
pp. 263-264
Author(s):  
Yuichiro Oku ◽  
Hirofumi Tanigawa ◽  
Takaharu Tsuruta
Keyword(s):  
Numerical Study ◽  
Thawing Process

Three-Dimensional Numerical Study on Freezing Phase Change Heat Transfer in Biological Tissue Embedded With Two Cryoprobes

2011 ◽  
Vol 3 (3) ◽  
Author(s):  
Fang Zhao ◽  
Zhenqian Chen
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Biological Tissue ◽  
Clinical Medicine ◽  
Numerical Study ◽  
Biological Tissues ◽  
Freezing Process ◽  
Ice Crystal ◽  
Obvious Effect ◽  
Phase Change Heat Transfer

Biological tissues undergo complex phase change heat transfer processes during cryosurgery, and a theoretical model is preferable to forecast this heat experience. A mathematical model for phase change heat transfer in cryosurgery was established. In this model, a fractal treelike branched network was used to describe the complicated geometrical frame of blood vessels. The temperature distribution and ice crystal growth process in biological tissue including normal tissue and tumor embedded with two cryoprobes were numerically simulated. The effects of cooling rate, initial temperature, and distance of two cryoprobes on freezing process of tissue were also studied. The results show that the ice crystal grows more rapidly in the initial freezing stage (<600 s) and then slows down in the following process, and the precooling of cryoprobes has no obvious effect on freezing rate of tissue. It also can be seen that the distance of 10 mm between two cryoprobes produces an optimal freezing effect for the tumor size (20 mm × 10 mm) in the present study compared with the distances of 6 mm and 14 mm. The numerical results are significant in providing technical reference for application of cryosurgery in clinical medicine.

A Numerical Study of the Thawing Process of a Frozen Coal Particle

1983 ◽  
Vol 105 (1) ◽  
pp. 197-200 ◽  
Author(s):  
J. F. Raymond ◽  
B. Rubinsky
Keyword(s):  
Coal Particle ◽  
Numerical Study ◽  
Thawing Process

scholarly journals Theoretical Evaluation of Microwave Ablation Applied on Muscle, Fat and Bone: A Numerical Study

2021 ◽  
Vol 11 (17) ◽  
pp. 8271 ◽  
Author(s):  
Cheng Chen ◽  
Ming-An Yu ◽  
Lin Qiu ◽  
Hong-Yu Chen ◽  
Zhen-Long Zhao ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Biological Tissue ◽  
Microwave Ablation ◽  
Numerical Study ◽  
Biological Tissues ◽  
Heat Transfer Analysis ◽  
Temperature Threshold ◽  
Radiation Physics ◽  
Experimental Conditions

(1) Background: Microwave ablation (MWA) is a common tumor ablation surgery. Because of the high temperature of the ablation antenna, it is strongly destructive to surrounding vital tissues, resulting in high professional requirements for clinicians. The method used to carry out temperature observation and damage prediction in MWA is significant; (2) Methods: This work employs numerical study to explore temperature distribution of typical tissues in MWA. Firstly, clinical MWA based on isolated biological tissue is implemented. Then, the Pennes models and microwave radiation physics are established based on experimental parameters and existing related research. Initial values and boundary conditions are adjusted to better meet the real clinical materials and experimental conditions. Finally, clinical MWA data test this model. On the premise that the model is matched with clinical MWA, fat and bone are deduced for further heat transfer analysis. (3) Results: Numerical study obtains the temperature distribution of biological tissue in MWA. It observes the heat transfer law of ablation antenna in biological tissue. Additionally, combined with temperature threshold, it generates thermal damage of biological tissues and predicts the possible risks in MWA; (4) Conclusions: This work proposes a numerical study of typical biological tissues. It provides a new theoretical basis for clinically thermal ablation surgery.

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