Effect of temperature on the optical properties of ex vivo human dermis and subdermis

被引：101

作者：

Laufer, J ^{[1
]}

Simpson, R

Kohl, M

Essenpreis, M

Cope, M

机构：

[1] UCL, Dept Med Phys & Bioengn, London WC1E 6JA, England

[2] Boehringer Mannheim GmbH, D-63305 Mannheim, Germany

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1998年 / 43卷 / 09期

关键词：

D O I：

10.1088/0031-9155/43/9/004

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The effect of temperature on the optical properties of human dermis and subdermis as a function of near-infrared wavelength has been studied between 25 degrees C and 40 degrees C. Measurements were performed ex vivo on a total of nine skin samples taken from the abdomen of three individuals. The results show a reproducible effect of temperature on the transport scattering coefficient of dermis and subdermis. The relative change of the transport scattering coefficient showed an increase for dermis ((4.7 +/- 0.5) x 10(-3)degrees C(-1)) and a decrease for subdermis ((-1.4 +/- 0.28) x 10(-3)degrees C(-1)). Note that the magnitude of the temperature coefficient of scattering was greater for dermis than subdermis. A reproducible effect of temperature on the absorption coefficient could not be found within experimental errors. System reproducibility in transport scattering coefficient with repeated removal and repositioning of the same tissue sample at the same temperature was excellent at +/-0.35% for all measurements. This reproducibility enabled such small changes in scattering coefficient to be detected.

引用

页码：2479 / 2489

页数：11

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