Multiscale analysis of thermoregulation in the human microvascular system

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  • Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB)
  • Albert-Ludwigs-Universität Freiburg
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Details

OriginalspracheEnglisch
Seiten (von - bis)971-989
Seitenumfang19
FachzeitschriftMathematical Methods in the Applied Sciences
Jahrgang27
Ausgabenummer8
PublikationsstatusVeröffentlicht - 25 Mai 2004

Abstract

The bio-heat transfer equation is a macroscopic model for describing the heat transfer in microvascular tissue. So far the derivation of the Helmholtz term arising in the bio-heat transfer equation is not completely satisfactory. Here we use homogenization techniques to show that this term may be understood as asymptotic result of boundary value problems which provide a microscopic description for microvascular tissue. An appropriate scaling of so-called heat transfer coefficients in Robin boundary conditions on tissue-blood boundaries is seen to play the crucial role. In view of a future application of our new mathematical model for treatment planning in hyperthermia, we derive asymptotic estimates for the first-order corrector.

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Multiscale analysis of thermoregulation in the human microvascular system. / Deuflhard, Peter; Hochmuth, Reinhard.
in: Mathematical Methods in the Applied Sciences, Jahrgang 27, Nr. 8, 25.05.2004, S. 971-989.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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AU - Hochmuth, Reinhard

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N2 - The bio-heat transfer equation is a macroscopic model for describing the heat transfer in microvascular tissue. So far the derivation of the Helmholtz term arising in the bio-heat transfer equation is not completely satisfactory. Here we use homogenization techniques to show that this term may be understood as asymptotic result of boundary value problems which provide a microscopic description for microvascular tissue. An appropriate scaling of so-called heat transfer coefficients in Robin boundary conditions on tissue-blood boundaries is seen to play the crucial role. In view of a future application of our new mathematical model for treatment planning in hyperthermia, we derive asymptotic estimates for the first-order corrector.

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KW - Bio-heat equation

KW - Correctors

KW - Heat transfer

KW - Homogenization

KW - Hyperthermia

KW - Robin boundary conditions

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