用小数据快速准确预测凝血状态,提升临床诊疗效率。
Neural Architecture for Fast and Reliable Coagulation Assessment in Clinical Settings: Leveraging Thromboelastography
- 基于多域学习与注意力机制融合动态生理信号
- 预测精度R²超0.98,推理时间减半且误差降低50%
- 适合数据稀缺场景的医疗AI应用,尤其急诊与重症监护
在理想医疗环境中,实时凝血监测可实现风险早期发现与及时干预。然而,目前广泛应用的血栓弹力图(TEG)需近1小时测量才能输出结果,延误可能增加死亡率。这一问题凸显了医疗AI的核心挑战:如何在小样本数据和患者群体差异下做出可靠预测,传统深度学习方法在此常表现不佳。本文提出生理状态重建(PSR)算法,通过多域特征融合(MDFE)整合多时序信号,并利用高阶注意力学习(HLA)联合建模高层时序交互,结合参数化动态修正模块(DAM)确保生命体征计算稳定性。PSR在4个TEG专用数据集上验证,对凝血特征的预测R²超过0.98,相比最先进方法误差减少约一半,推理时间亦减半。漂移感知学习为未来开辟新路径,其应用潜力远超血栓倾向检测,适用于各类数据稀缺的医疗AI场景。
原文摘要 · Abstract (English)
In an ideal medical environment, real-time coagulation monitoring can enable early detection and prompt remediation of risks. However, traditional Thromboelastography (TEG), a widely employed diagnostic modality, can only provide such outputs after nearly 1 hour of measurement. The delay might lead to elevated mortality rates. These issues clearly point out one of the key challenges for medical AI development: Mak-ing reasonable predictions based on very small data sets and accounting for variation between different patient populations, a task where conventional deep learning methods typically perform poorly. We present Physiological State Reconstruc-tion (PSR), a new algorithm specifically designed to take ad-vantage of dynamic changes between individuals and to max-imize useful information produced by small amounts of clini-cal data through mapping to reliable predictions and diagnosis. We develop MDFE to facilitate integration of varied temporal signals using multi-domain learning, and jointly learn high-level temporal interactions together with attentions via HLA; furthermore, the parameterized DAM we designed maintains the stability of the computed vital signs. PSR evaluates with 4 TEG-specialized data sets and establishes remarkable perfor-mance -- predictions of R2 > 0.98 for coagulation traits and error reduction around half compared to the state-of-the-art methods, and halving the inferencing time too. Drift-aware learning suggests a new future, with potential uses well be-yond thrombophilia discovery towards medical AI applica-tions with data scarcity.
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