CHANGES IN THE OPTICAL-PROPERTIES (AT 632.8 NM) OF SLOWLY HEATED MYOCARDIUM
CHANGES IN THE OPTICAL-PROPERTIES (AT 632.8 NM) OF SLOWLY HEATED MYOCARDIUM
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DOI：
10.1364/ao.32.000367
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发表时间：
1993-02-01
期刊：
影响因子：
1.9
通讯作者：
VANGEMERT, MJC
中科院分区：
文献类型：
--
作者：
PICKERING, JW;BOSMAN, S;VANGEMERT, MJC
在室温和37-75 ℃水浴中加热1000 s后，测量了犬心肌的三个传输方程光学性质，即吸收系数、散射系数和散射角的平均余弦或各向异性因子（在632.8 nm处）。测量系统是一个双积分球与准直光，并利用添加加倍解决方案的辐射传输方程。在高于45 ℃时，吸收系数（室温对照，2.0 +/-0.4 cm-1）开始增加，各向异性因子（室温对照，0.93 +/-0.02）降低。在75 ℃时，变化在p < 0.0005的水平上是显著的（吸收，4.5 +/- 1.3 cm-1;各向异性，0.78 +/- 0.05）。散射系数无显著变化（室温对照，161 +/- 33 cm-1）。
The three transport equation optical properties, the absorption coefficient, the scattering coefficient, and the average cosine of the scattering angle, or anisotropy factor have been in measured (at 632.8 nm) for canine myocardium after it is heated m a water bath at room temperature and at 37-75-degrees-C for 1000 s. The measurement system was a double integrating sphere with collimated light and utilized the adding-doubling solution to the equation of radiative transfer. The absorption coefficient (room temperature control, 2.0 +/- 0.4 cm-1) began to increase and the anisotropy factor (room temperature control, 0.93 +/- 0.02) to decrease at above 45-degrees-C. At 75-degree-C the changes were significant at the p < 0.0005 level (absorption, 4.5 +/- 1.3 cm-1; anisotropy, 0.78 +/- 0.05). There was no significant change in the scattering coefficient (room temperature controls, 161 +/- 33 cm-1).