脂肪测量的近红外光谱研究(英文)

Study on fat measurement by near infrared spectroscopy

近年来,随着居民生活水平的日益提高,肥胖率呈上升趋势,肥胖对健康的危害也在不断扩大,因此对肥胖的监控已显得尤为重要。首先,从近红外光在脂肪组织内的传播机理入手,研究了近红外光与脂肪及肌肉组织的吸收、散射、反射等相互作用。然后通过实验获取了脂肪组织的近红外光谱信息,实验结果分析表明,930 nm是最适合用于进行脂肪组织厚度测量的波长,该波长处的光强与脂肪组织的厚度具有大范围较强的关联性。由于肌肉组织的干扰作用,及该处光强随脂肪组织厚度变化的动态范围较小,波长1 040 nm不适合用于脂肪组织厚度的测量。通过此项研究,为进一步更好地实现光学无损脂肪测量奠定了基础。

In recent years, with the improvement of people ′ s living standard, the rate of obesity was on the rise, and the dangers of obesity to health was rising too, therefore the monitoring of obesity became particularly important. Firstly, the propagation mechanism of near infrared light in the fat tissue was discussed, and the interactions between near infrared light and the fat, muscle tissues such as absorption,scattering and reflection were studied in this research. Then the near infrared spectroscopy information of the fat tissue was gotten by the experiments, whose results demonstrated that 930 nm was the best candidate for measuring the fat tissue thickness, and the intensity of light at this wavelength was strongly correlated with the fat tissue thickness on a large scale. Because of the interference of the muscle tissue and the small dynamic range of light intensity varied with the fat tissue thickness at 1 040 nm, the wavelength of 1 040 nm was not suitable for measuring the fat tissue thickness. It laid a foundation for further and better realization of optical noninvasive fat measurement through this study.