相关实验视频

Updated: Feb 1, 2026

Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization

Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization

Published on: August 11, 2023

使用随机森林和SHAP算法预测新血管与年龄相关的黄斑变性治疗对抗VEGF治疗的反应

Peng Zhang¹, Jialiang Duan¹, Caixia Wang¹

¹Department of Ophthalmology, The Second Hospital of Hebei Medical University.

Photodiagnosis and photodynamic therapy

|May 16, 2025

概括

机器学习准确地预测了新血管与年龄相关的黄斑变性 (AMD) 中的抗VEGF治疗反应. 光学连贯断层扫描血管学特征,如碎形维度,是关键预测因素,增强治疗策略.

科学领域:

眼科医生眼科眼科
医疗成像医学成像
人工智能的人工智能

背景情况:

神经血管与年龄相关的黄斑变性 (AMD) 对视力构成重大挑战.
抗血管内皮生长因子 (VEGF) 治疗是基石治疗,但预测患者的反应仍然至关重要.
开发准确的预测模型可以优化治疗选择并改善患者的治疗结果.

研究的目的:

建立和验证基于机器学习的预测模型,用于新血管AMD中抗VEGF治疗反应.
用SHAP算法来确定模型可解释性的关键预测因素.
增强对新血管性AMD患者抗VEGF治疗的临床决策.

主要方法:

从145名新血管AMD患者的人口,实验室和光学连贯性断层扫描 (OCT) 和OCT血管造影 (OCTA) 图像数据的回顾性分析.
开发和比较八个机器学习模型 (逻辑回归,梯度提升决策树,随机森林,CatBoost,支持矢量机,XGboost,LightGBM,K最近邻居).
使用SHAP算法选择最佳模型 (随机森林) 并解释特征重要性.

主要成果:

随机森林模型以75.86%的准确度和0.91.9的AUC实现了最佳性能.
确定的关键预测因素包括OCTA特征 (碎形维度,血管长度,结点,面积,缺口),胆道新血管化 (CNV) 类型,年龄,病情持续时间和最佳校正视力敏度 (BCVA).
SHAP分析提供了对因素级和个人级预测驱动因素的详细见解.

结论:

用SHAP解释的随机森林模型是预测新血管AMD中抗VEGF治疗反应的可行和有效工具.
OCTA成像特征是治疗反应的非常重要的预测因素.
这种方法可以帮助临床医生个性化针对新血管AMD的抗VEGF疗法.

关键词:

这就是 SHAP SHAP 的意思.与年龄相关的黄斑变性.机器学习是机器学习.随机的森林随机的森林响应反应的反应反应的反应.

更多相关视频

Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

Published on: May 26, 2023

Regenerative Therapy by Suprachoroidal Cell Autograft in Dry Age-related Macular Degeneration: Preliminary In Vivo Report

Regenerative Therapy by Suprachoroidal Cell Autograft in Dry Age-related Macular Degeneration: Preliminary In Vivo Report

Published on: February 12, 2018

相关概念视频

Predicting Molecular Geometry

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries

Random Error

Random Error

Random or indeterminate errors originate from various uncontrollable variables, such as variations in environmental conditions, instrument imperfections, or the inherent variability of the phenomena being measured. Usually, these errors cannot be predicted, estimated, or characterized because their direction and magnitude often vary in magnitude and direction even during consecutive measurements. As a result, they are difficult to eliminate. However, the aggregate effect of these errors can be...

Random Variables

Random Variables

A random variable is a single numerical value that indicates the outcome of a procedure. The concept of random variables is fundamental to the probability theory and was introduced by a Russian mathematician, Pafnuty Chebyshev, in the mid-nineteenth century.
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...

Randomized Experiments

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...

Trial and Error and Algorithm

Trial and Error and Algorithm

A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...

Aging

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...