arXiv:2504.10493eess.IVcs.CV2025-04被引 19

融合心电图与眼底图像,提升心血管病早期筛查准确率

Integrating electrocardiogram and fundus images for early detection of cardiovascular diseases

  • 用傅里叶变换将心电图和眼底图转为频域特征
  • 通过地球移动距离度量差异,组合特征分类准确率达84%
  • 适合资源有限地区的心血管疾病初筛应用

心血管疾病(CVD)是全球主要健康问题,亟需先进诊断技术。本文提出一种新方法,联合心电图(ECG)与视网膜眼底图像,实现心血管疾病的早期识别与优先级分诊。基于视网膜微血管网络反映心血管系统状态,结合心电图提供的动态心脏信息,构建整体诊断视角。首先对ECG与眼底图像分别进行快速傅里叶变换(FFT),将其转换至频域;随后计算两模态频域特征的地球移动距离(EMD);将这些EMD值拼接成综合特征向量,输入神经网络分类器。该方法利用FFT的谱分析能力与EMD捕捉细微数据差异的优势,实现稳健的CVD分类。初步实验显示分类准确率达84%,验证了该联合诊断策略的潜力。未来研究将进一步优化与验证模型,提升其在印度次大陆及全球资源受限医疗环境中的临床适用性。

原文摘要 · Abstract (English)

Cardiovascular diseases (CVD) are a predominant health concern globally, emphasizing the need for advanced diagnostic techniques. In our research, we present an avant-garde methodology that synergistically integrates ECG readings and retinal fundus images to facilitate the early disease tagging as well as triaging of the CVDs in the order of disease priority. Recognizing the intricate vascular network of the retina as a reflection of the cardiovascular system, alongwith the dynamic cardiac insights from ECG, we sought to provide a holistic diagnostic perspective. Initially, a Fast Fourier Transform (FFT) was applied to both the ECG and fundus images, transforming the data into the frequency domain. Subsequently, the Earth Mover's Distance (EMD) was computed for the frequency-domain features of both modalities. These EMD values were then concatenated, forming a comprehensive feature set that was fed into a Neural Network classifier. This approach, leveraging the FFT's spectral insights and EMD's capability to capture nuanced data differences, offers a robust representation for CVD classification. Preliminary tests yielded a commendable accuracy of 84 percent, underscoring the potential of this combined diagnostic strategy. As we continue our research, we anticipate refining and validating the model further to enhance its clinical applicability in resource limited healthcare ecosystems prevalent across the Indian sub-continent and also the world at large.

心血管病多模态早期筛查

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