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

doi:10.1016/j.medengphy.2005.04.020

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

Surgery, Surgical Oncology Division

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

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 language	English (US)
Pages (from-to)	194-197
Number of pages	4
Journal	Medical Engineering and Physics
Volume	28
Issue number	2
DOIs	https://doi.org/10.1016/j.medengphy.2005.04.020
State	Published - Mar 2006

Keywords

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

ASJC Scopus subject areas

Biophysics
Biomedical Engineering

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10.1016/j.medengphy.2005.04.020

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title = "In vitro measurements of temperature-dependent specific heat of liver tissue",

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.",

keywords = "Liver tissue, Specific heat, Specific heat temperature dependence, Thermal tissue properties, Tumor ablation",

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T1 - In vitro measurements of temperature-dependent specific heat of liver tissue

AU - Haemmerich, Dieter

AU - Santos, Icaro Dos

AU - Schutt, David J.

AU - Webster, John G.

AU - Mahvi, David M.

PY - 2006/3

Y1 - 2006/3

N2 - 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.

AB - 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.

KW - Liver tissue

KW - Specific heat

KW - Specific heat temperature dependence

KW - Thermal tissue properties

KW - Tumor ablation

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JO - Medical Engineering and Physics

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ER -

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

Abstract

Keywords

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