Temperature simulations in tissue with a realistic computer generated vessel network.
The practical use of a discrete vessel thermal model for hyperthermia treatment planning requires a number of choices with respect to the unknown part of the patient's vasculature. This work presents a study of the thermal effects of blood flow in a simple tissue geometry with a detailed artificial vessel network. The simulations presented here demonstrate that an incomplete discrete description of the detailed network results in a better prediction of the temperature distribution than is obtained using the conventional bio-heatsink equation. Therefore, efforts to obtain information on the positions of the large vessels in an individual hyperthermia patient will be rewarded with a more accurate prediction of the temperature distribution.
Van Leeuwen
G M
GM
Department of Radiotherapy, University Hospital Utrecht, The Netherlands.
Kotte
A N
AN
Raaymakers
B W
BW
Lagendijk
J J
JJ
D001158:Arteries / Q000502:physiology; D001783:Blood Flow Velocity; D003198:Computer Simulation; D006358:Hot Temperature; D006801:Humans; D007700:Kinetics; D008954:Models, Biological; D013696:Temperature; D014680:Veins / Q000502:physiology