NEAR INFRARED SPECTROMETRY
\nˌi͡əɹ ˌɪnfɹəɹˈɛd spɛktɹˈɒmətɹi], \nˌiəɹ ˌɪnfɹəɹˈɛd spɛktɹˈɒmətɹi], \n_ˌiə_ɹ ˌɪ_n_f_ɹ_ə_ɹ_ˈɛ_d s_p_ɛ_k_t_ɹ_ˈɒ_m_ə_t_ɹ_i]\
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A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxgenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
By DataStellar Co., Ltd
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