Influences of hypothermia and tissue perfusion on temperature distributions in simulated cranial surgery

S. Vietla, R. C. Eberhart, D. M. Meyer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We applied the bioheat transfer (FEM) equation to the analysis of intracranial temperature distributions. The brain was isothermal at steady state, for perfusion rates of 1.0 and 0.1 ml/gm/min but not at 0.01 ml/gm/min. The largest temperature gradients were observed in the naso-pharyngeal (N-P) region. Altering surface heat transfer coefficient had little influence on brain temperature, even in regions of surgical exposure. Transient analysis demonstrated prompt reductions in cerebral temperature, with slower fall in N-P temperature. Maintaining normal tissue perfusion throughout the cooling period ensures uniform temperature within the cerebral tissues and avoids inadequate local cooling arising out of ischemic insult.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Place of PublicationNew York, NY, United States
PublisherPubl by ASME
Pages9-17
Number of pages9
Volume268
ISBN (Print)079181047X
Publication statusPublished - 1993
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
Duration: Nov 28 1993Dec 3 1993

Other

OtherProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA
Period11/28/9312/3/93

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ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Vietla, S., Eberhart, R. C., & Meyer, D. M. (1993). Influences of hypothermia and tissue perfusion on temperature distributions in simulated cranial surgery. In American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD (Vol. 268, pp. 9-17). New York, NY, United States: Publ by ASME.