arXiv:2509.14167cs.LGq-bio.QM2025-09

无需侵入性检测,通过常规数据估算眼压关键指标。

Deconstructing Intraocular Pressure: A Non-invasive Multi-Stage Probabilistic Inverse Framework

  • 分阶段AI架构结合贝叶斯不确定性量化,解构眼压成因。
  • 仅用少量数据实现与金标准相当的出液率预测精度。
  • 可推广至其他难测量、高成本的医学逆问题研究。

许多关键医疗决策受限于核心参数无法测量。青光眼由眼内压(IOP)升高驱动,其主要决定因素——小梁网渗透性无法在体测量,导致临床依赖间接替代指标。这一临床难题还伴随计算挑战:缺乏真实数据且高保真模拟成本极高,制约了此类不适定逆问题的建模。本文提出端到端非侵入式框架,仅用稀疏常规数据即可估计不可测变量。方法包含多阶段人工智能架构以功能解耦问题;一种名为PCDS的新颖数据生成策略,避免数万次昂贵仿真,将有效计算时间从数年缩短至数小时;以及贝叶斯引擎用于量化预测不确定性。该框架仅基于常规输入,即可分解单一眼压测量,获得组织渗透性和患者房水流出率估计。非侵入性估算的流出率与最先进的眼压描记术高度一致,精度媲美直接物理仪器。新推导的渗透性生物标志物在疾病风险分层中表现优异,凸显其诊断潜力。更广泛地,本框架为数据稀缺、计算密集的其他逆问题提供了通用解决方案。

原文摘要 · Abstract (English)

Many critical healthcare decisions are challenged by the inability to measure key underlying parameters. Glaucoma, a leading cause of irreversible blindness driven by elevated intraocular pressure (IOP), provides a stark example. The primary determinant of IOP, a tissue property called trabecular meshwork permeability, cannot be measured in vivo, forcing clinicians to depend on indirect surrogates. This clinical challenge is compounded by a broader computational one: developing predictive models for such ill-posed inverse problems is hindered by a lack of ground-truth data and prohibitive cost of large-scale, high-fidelity simulations. We address both challenges with an end-to-end framework to noninvasively estimate unmeasurable variables from sparse, routine data. Our approach combines a multi-stage artificial intelligence architecture to functionally separate the problem; a novel data generation strategy we term PCDS that obviates the need for hundreds of thousands of costly simulations, reducing the effective computational time from years to hours; and a Bayesian engine to quantify predictive uncertainty. Our framework deconstructs a single IOP measurement into its fundamental components from routine inputs only, yielding estimates for the unmeasurable tissue permeability and a patient's outflow facility. Our noninvasively estimated outflow facility achieved excellent agreement with state-of-the-art tonography with precision comparable to direct physical instruments. Furthermore, the newly derived permeability biomarker demonstrates high accuracy in stratifying clinical cohorts by disease risk, highlighting its diagnostic potential. More broadly, our framework establishes a generalizable blueprint for solving similar inverse problems in other data-scarce, computationally-intensive domains.

眼科逆问题人工智能

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