In vitro measurements of temperature-dependent specific heat of liver tissue

Dieter Haemmerich*, Icaro Dos Santos, David J. Schutt, John G. Webster, David M. Mahvi

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

We measured the specific heat of liver tissue in vitro by uniformly heating liver samples between two electrodes. We insulated the samples by expanded polystyrene, and corrected for heat loss and water loss. The specific heat of the liver is temperature-dependent, and increases by 17% at 83.5°C (p < 0.05), compared to temperatures below 65°C. The average specific heat was 3411 J kg-1 K-1 at 25°C, and 4187 J kg-1 K-1 at 83.5°C. Water loss from the samples was significant above 70°C, with ∼20% of reduction in sample mass at 90°C.

Original languageEnglish (US)
Pages (from-to)194-197
Number of pages4
JournalMedical Engineering and Physics
Volume28
Issue number2
DOIs
StatePublished - Mar 1 2006

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Keywords

  • Liver tissue
  • Specific heat
  • Specific heat temperature dependence
  • Thermal tissue properties
  • Tumor ablation

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering

Cite this

Haemmerich, D., Santos, I. D., Schutt, D. J., Webster, J. G., & Mahvi, D. M. (2006). In vitro measurements of temperature-dependent specific heat of liver tissue. Medical Engineering and Physics, 28(2), 194-197. https://doi.org/10.1016/j.medengphy.2005.04.020