Karaki Wafaa, Akyildiz Ali, Borca Tasciuc Diana-Andra, De Suvranu
Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic University, Troy, NY.
Stud Health Technol Inform. 2016;220:171-4.
This paper reports on the measurement of temperature dependent apparent specific heat of ex-vivo porcine liver tissue during radiofrequency alternating current heating for a large temperature range. The difference between spatial and temporal evolution of experimental temperature, obtained during electrosurgical heating by infrared thermometry, and predictions based on finite element modeling was minimized to obtain the apparent specific heat. The model was based on transient heat transfer with internal heat generation considering heat storage along with conduction. Such measurements are important to develop computational models for real time simulation of electrosurgical procedures.
本文报道了在较大温度范围内，对射频交流电加热离体猪肝组织时与温度相关的表观比热的测量。通过红外测温法在电外科加热过程中获得的实验温度的空间和时间演变与基于有限元建模的预测之间的差异被最小化，以获得表观比热。该模型基于考虑热存储和传导的带有内部热生成的瞬态热传递。此类测量对于开发用于电外科手术实时模拟的计算模型很重要。
