A fast adaptive power scheme based on temperature distribution and convergence value for optimal hyperthermia treatment

doi:10.1016/j.applthermaleng.2011.11.003

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Title:	A fast adaptive power scheme based on temperature distribution and convergence value for optimal hyperthermia treatment
Authors:	Huang, Huang-Wen;Liauh, Chihng-Tsung;Chou, Cheng-Ying;Shih, Tzu-Ching;Lin, Win-Li
Contributors:	淡江大學資訊創新與科技學系
Keywords:	Adaptive power scheme;Hyperthermia;Bio-heat transfer equation;Thermally significant blood vessel
Date:	2012-05
Issue Date:	2012-05-08 15:53:21 (UTC+8)
Publisher:	Kidlington: Pergamon
Abstract:	To elevate tissue temperature to therapeutic level fast with optimal power deposition during hyperthermia treatment (HT) is a key treatment processing step. Traditionally we have treated the tumor volume, without considering possible existing thermally significant vessels, using a simple 1st-order temperature-based adaptive power scheme to determine optimal power deposition distributions. The objectives of this study were to reveal the difficulty of that approach when considering single large blood vessel, and proposed a novel fast scheme that could improve upon and substitute for the traditional temperature-based adaptive power scheme. In this study, we presented a novel three-coefficient-andtwo-SCV 5th-order temperature-based adaptive power scheme to resolve the induced large blood vessel problem in 3-D temperature distribution and introduced the parameter, SCV (Sentinel Convergence Value), to handle interior scheme shift. Results of the novel adaptive power scheme has shown its robustness to fast approach optimal temperature distribution and power density distribution with high precision in the tumor volume when considering the existence of thermally significant blood vessel. Ultimately, we may be able to effectively calculate the absorbed power density distribution of 3-D biological tissues with a complicated vasculature in the volume.
Relation:	Applied Thermal Engineering 37, pp.103–111
DOI:	10.1016/j.applthermaleng.2011.11.003
Appears in Collections:	[Department of Innovative Information and Technology] Journal Article

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