Near-infrared spectroscopy system for determining brain hemoglobin level.

Area of Science:

• Neuroscience
• Biomedical Engineering
• Medical Imaging

Background:

• Traumatic brain injury (TBI) poses significant risks, including disability and death, yet physiological changes during TBI remain understudied.
• Current monitoring methods for TBI-related physiological changes are limited, necessitating advanced, non-invasive techniques.

Purpose of the Study:

• To design and implement a non-invasive, wireless multi-channel near-infrared spectroscopy (NIRS) system for continuous physiological monitoring during and after TBI.
• To investigate the relationship between TBI severity and changes in hemoglobin concentrations.

Main Methods:

• Development of a wireless, multi-channel NIRS system capable of real-time monitoring.
• Continuous measurement of oxy-hemoglobin (HbO2), deoxy-hemoglobin (HbR), and total-hemoglobin (HbT) concentrations.
• Correlation analysis between NIRS-derived hemoglobin changes and TBI impact strength and infarction volume.

Main Results:

• The NIRS system successfully monitored continuous changes in HbO2, HbR, and HbT concentrations during and after TBI.
• Significant correlations were observed between the concentration changes of HbO2 and HbT and the impact strength and infarction volume associated with TBI.
• The developed system demonstrated ease of use and stability for TBI research.

Conclusions:

• The wireless NIRS system provides a valuable, non-invasive tool for studying physiological responses to TBI.
• Hemoglobin concentration changes measured by NIRS are reliable indicators of TBI severity and impact.
• This technology facilitates further research into the pathophysiology of TBI and potential therapeutic interventions.