ARTICULAR CARTILAGE OPTICAL PROPERTIES IN THE SPECTRAL RANGE 300-850 NM
ARTICULAR CARTILAGE OPTICAL PROPERTIES IN THE SPECTRAL RANGE 300-850 NM
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DOI：
10.1117/1.429893
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发表时间：
1998-07-01
影响因子：
3.5
通讯作者：
Bertone, Alicia L.
中科院分区：
文献类型：
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作者：
Ebert, Daniel W.;Roberts, Cynthia;Bertone, Alicia L.
使用带有积分球附件的分光光度计，从承重（n=9）和非承重（n=9）马关节软骨标本记录300至850 nm的绝对全反射率测量值。根据界面反射和边缘损失对测得的光谱进行校正后，应用Kubelka-Munk理论估计吸收和散射系数、一维光强分布和光穿透深度。Kubelka-Munk吸收系数范围从330 nm处的7 cm（-1）到850 nm处的1 cm（-1）。在340 nm处观察到局部吸收峰。在510 nm以上，负重软骨的吸收系数明显高于非负重组织（配对t检验，p
Measurements of absolute total reflectance were recorded from weight-bearing (n=9) and nonweight-bearing (n=9) equine articular cartilage specimens from 300 to 850 nm using a spectrophotometer with integrating sphere attachment. Following correction of measured spectra for interfacial reflections and edge losses, Kubelka-Munk theory was applied to estimate absorption and scattering coefficient, one-dimensional light intensity distribution, and light penetration depth. Kubelka-Munk absorption coefficients ranged from similar to 7 cm(-1) at 330 nm to similar to 1 cm(-1) at 850 nm. A localized absorption peak was noted at; 340 nm. Above 510 nm, weight-bearing cartilage demonstrated significantly higher absorption coefficients than nonweight-bearing tissue (paired t-test, p