Comparison of Constant and Temperature Dependent Blood Perfusion in Temperature Prediction for Superficial Hyperthermia

Tomás Drízdal, Paolo Togni, L Visek, J Vrba

Research output: Contribution to journalArticleAcademic

Abstract

The purpose of this study was to determine whether prediction of the 3D temperature profile for superficial hyperthermia using constant blood perfusion model could be matched to one with a temperature dependent blood perfusion. We compared three different constant blood perfusion scenarios with one temperature dependent blood perfusion using a layered model of biological tissue consisting of skin (2 mm), fat (10 mm) and muscle (108 mm). For all four scenarios the maximum temperature of 43 degrees C was found in the muscle tissue in the close proximity (1 - 3 mm) of fat layer. Cumulative histograms of temperature versus volume were identical for the region of 100x100x40 mm(3) under the applicator aperture for the three constant blood perfusion models. For temperature dependent blood perfusion model, 85 % of the studied region was covered with the temperature equal or higher than 40 degrees C in comparison with 43 % for the constant blood perfusion models. Hence this study demonstrates that constant blood perfusion scenarios cannot be matched to one with a temperature dependent blood perfusion.
Original languageUndefined/Unknown
Pages (from-to)281-289
Number of pages9
JournalRadioengineering
Volume19
Issue number2
Publication statusPublished - 2010

Cite this