INTERSTITIAL HEATING - EXPERIMENTS IN ARTIFICIALLY PERFUSED BOVINE TONGUES

被引:15
作者
CREZEE, J
MOOIBROEK, J
BOS, CK
LAGENDIJK, JJW
机构
[1] Dept. of Radiotherapy, Utrecht Univ. Hosp.
关键词
D O I
10.1088/0031-9155/36/6/010
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Isolated perfused bovine tongues were heated with a 2 x 2 hot water tube interstitial hyperthermia system (tube outer diameter 2.0 mm, spacing 16 mm). Tongue blood flow ranged between 0 and 17 ml min-1/100 g. The temperature distribution was mapped with 5 to 8 single thermocouples (diameter 50-mu-m). Model predictions using both the conventional bioheat transfer equation and the effective conductivity model were compared to the experimental results, with emphasis on the role of blood flow. Results indicate a better qualitative agreement with the k-effective model than with the heat sink model. In this set up a 16 mm spacing proved sufficient for adequate heating between the needles at normal blood flow rates, in the absence of large vessels.
引用
收藏
页码:823 / 833
页数:11
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