| 释义 |
Spectroscopy,Near Infrared | 《英文msh词典》Spectroscopy,Near Infrared | | [入口词] Spectroscopy,Near Infrared | | [主题词] Spectroscopy,Near-Infrared | | [英文释义] 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. |
|