用AI提升脑部近红外监测精度,实时区分皮层氧合状态。
AI-Enhanced High-Density NIRS Patch for Real-Time Brain Layer Oxygenation Monitoring in Neurological Emergencies
- 结合高密度近红外数据与深度学习模型,实现层析氧合分析。
- 模拟与实验验证中相关性达R2=0.913和R2=0.986,显著优于传统方法。
- 适合急诊与床旁场景,助力脑卒中等神经急症快速诊断。
光子散射传统上限制了近红外光谱(NIRS)获取脑部精确、分层信息的能力,制约其在神经监测中的临床应用。为此,我们提出一种基于AI的高密度NIRS系统,可实时提供针对脑皮层的分层氧合数据,专用于急性神经事件监测。该系统融合高密度NIRS反射数据与基于MRI合成数据集训练的神经网络,实现对多种解剖变异下皮层氧合的高精度估计。仿真结果显示,该方法与真实皮层氧合具有强相关性(R²=0.913),显著优于传统方法(R²=0.469)。生物仿生体模实验进一步验证其解剖可靠性(R²=0.986),远超商用设备(R²=0.823)。在健康受试者与缺血性卒中患者中的临床验证表明,系统可有效区分两类人群,准确率AUC达0.943。该成果凸显了AI增强型NIRS在提升神经监测精度方面的潜力,为急重症监护中及时、数据驱动的决策提供了可行工具。
原文摘要 · Abstract (English)
Photon scattering has traditionally limited the ability of near-infrared spectroscopy (NIRS) to extract accurate, layer-specific information from the brain. This limitation restricts its clinical utility for precise neurological monitoring. To address this, we introduce an AI-driven, high-density NIRS system optimized to provide real-time, layer-specific oxygenation data from the brain cortex, specifically targeting acute neuro-emergencies. Our system integrates high-density NIRS reflectance data with a neural network trained on MRI-based synthetic datasets. This approach achieves robust cortical oxygenation accuracy across diverse anatomical variations. In simulations, our AI-assisted NIRS demonstrated a strong correlation (R2=0.913) with actual cortical oxygenation, markedly outperforming conventional methods (R2=0.469). Furthermore, biomimetic phantom experiments confirmed its superior anatomical reliability (R2=0.986) compared to standard commercial devices (R2=0.823). In clinical validation with healthy subjects and ischemic stroke patients, the system distinguished between the two groups with an AUC of 0.943. This highlights its potential as an accessible, high-accuracy diagnostic tool for emergency and point-of-care settings. These results underscore the system's capability to advance neuro-monitoring precision through AI, enabling timely, data-driven decisions in critical care environments.
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