基于光谱仪近红外光谱技术的组织氧测量研究

提出了一种基于光谱仪近红外光谱技术(Near Infrared Reflectance Spectroscopy, NIRS)的定量无损组织氧检测系统。通过用微型光谱仪代替传统信号接收处理部分，实时测出了光源波长，并用补偿算法抵消了环境的影响。对经过均值和FFT滤波后的输出光谱信号进行运算后，得出了组织氧浓度。用前臂阻断实验验证了组织血氧饱和度(Regional Saturation Of Oxygen, rSO2)测量结果的有效性。结果显示，测量结果与理论相符，表明基于光谱仪的NIRS技术可以较好地应用于监测组织的血氧饱和度，其适应性比传统方法更强。

Study of Tissue Oxygenation Measurement Using Near Infrared Spectroscopy Based on Spectrometer

A quantitative non-destructive tissue oxygen detection system based on Near Infrared Spectroscopy (NIRS) was proposed. By using a micro-spectrometer to replace the traditional signal receiving and processing part, the wavelength of the light source was measured in real time. The influence of the environment was compensated by a compensation algorithm. After the calculation of output spectral signals processed by mean and FFT filtering, the tissue oxygen concentration was obtained. In the forearm occlusion experiment, the effectiveness of the measurement results of Regional Saturation of Oxygen (rSO2) was verified. The measurement results were consistent with the theory. This showed that the NIRS technology based on the spectrometer could monitor rSO2 better and its adaptability was better than that of traditional methods.