A high-precision non-invasive cerebral tissue oxygen monitoring system
Objective This study presents a non-invasive cerebral tissue oxygen monitoring system integrating Functional Near-Infrared Spectroscopy(fNIRS)with USB interface,aimed at enhancing real-time monitoring capabilities and ease of operation.Methods In this study,Modified Beer-Lambert Law(MBLL)was used to measure tissue oxygenation changes under scalp and Silicon Photomultipliers(SiPM)was used as detector.By integrating fNIRS and portable USB interface,a lightweight,easy-to-use and cost-effective cerebral blood oxygen monitoring device has been developed.The accuracy,stability,reliability,ease of use and practicability of the brain tissue oxygen detection system were verified by a series of detailed experiments.Results Compared with the commercial product NeurOs Cerebral Oximetry,the system demonstrated accuracy within a±10％range.Reproducibility tests showed an error margin between 0.42％and 3.93％,with stable performance during 8 hours of continuous multi-channel monitoring.Conclusion The system's accuracy and stability provide a reliable tool for real-time monitoring of cerebral tissue oxygenation levels.Future research will explore miniaturization,wearability,and the integration of artificial intelligence technologies.
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