Estimation of blood perfusion using phase shift in temperature response to sinusoidal heating at the skin surface
- 1 January 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. 46 (9) , 1037-1043
- https://doi.org/10.1109/10.784134
Abstract
A closed form analytical solution of the Pennes' bioheat equation was obtained for temperature distributions in the skin tissue subject to the sinusoidal heat flux. Phase shifts in the surface temperature response were revealed to be related to local blood perfusion rate and heating frequency. The influence of the thermal contact resistance on the perfusion estimation was investigated. It has been proved that this influence is relatively small because of the phase shift based estimation and can be effectively eliminated by application of highly conductive grease. This analysis provides the theoretical foundation for a new noninvasive modality of blood perfusion estimation based on the surface temperature measurement which can have significant applications in future clinical practices.Keywords
This publication has 12 references indexed in Scilit:
- Development of methodologies for the estimation of blood perfusion using a minimally invasive thermal probeMeasurement Science and Technology, 1998
- Self-heated thermistor measurements of perfusionIEEE Transactions on Biomedical Engineering, 1992
- The influence of model parameter values on the prediction of skin surface temperature: II. Contact problemsPhysics in Medicine & Biology, 1991
- A Technique for Measuring the Thermal Conductivity and Evaluating the “Apparent Conductivity” Concept in BiomaterialsJournal of Biomechanical Engineering, 1989
- A Self-Heated Thermistor Technique to Measure Effective Thermal Properties From the Tissue SurfaceJournal of Biomechanical Engineering, 1987
- Thermal Pulse Decay Method for Simultaneous Measurement of Local Thermal Conductivity and Blood Perfusion: A Theoretical AnalysisJournal of Biomechanical Engineering, 1986
- The Simultaneous Measurement of Thermal Conductivity, Thermal Diffusivity, and Perfusion in Small Volumes of TissueJournal of Biomechanical Engineering, 1984
- Pulse-Decay Method for Measuring the Thermal Conductivity of Living TissuesJournal of Biomechanical Engineering, 1981
- MEASUREMENT OF THERMAL PROPERTIES OF GROWING TUMORSAnnals of the New York Academy of Sciences, 1980
- Temperature Field Due to a Time Dependent Heat Source of Spherical Geometry in an Infinite MediumJournal of Heat Transfer, 1974