Carpenter G K, Swiontkowski M F
University of Tennessee, Memphis.
Calcif Tissue Int. 1991 Jun;48(6):414-20. doi: 10.1007/BF02556455.
Laser Doppler Flowmetry (LDF) has been shown to be a useful tool in the experimental and clinical measurement of bone blood flow. Two LDF receiving fiber channel systems, one with a 2mW He-Ne tube laser source and the other with an infrared diode laser source, were compared with specific reference to their light attenuation through three types of bone as well as their threshold thickness for the same specimens. The threshold thickness was higher for the infrared diode system for all three bone types whereas the attenuation was identical. The demonstrated differences were most likely due to the criteria established for flow detection; the infrared diode system has a greater degree of amplification of the output signal, yielding a higher value at each thickness of bone. The two systems will produce similar output data when used for experimental analysis of bone blood flow.
激光多普勒血流仪（LDF）已被证明是用于骨血流实验和临床测量的有用工具。比较了两个LDF接收光纤通道系统，一个配备2mW氦氖管激光源，另一个配备红外二极管激光源，具体比较了它们通过三种类型的骨的光衰减以及相同标本的阈值厚度。对于所有三种骨类型，红外二极管系统的阈值厚度更高，而衰减相同。所显示的差异很可能是由于为血流检测设定的标准；红外二极管系统对输出信号的放大程度更高，在每种骨厚度下都产生更高的值。当用于骨血流的实验分析时，这两个系统将产生相似的输出数据。
