Advancements in Continuous Glucose Monitoring: Integrating Deep Learning and ECG Signal
MohammadReza Hosseinzadehketilateh, Banafsheh Adami, Nima Karimian
TL;DR
This work tackles noninvasive hyperglycemia monitoring using ECG by addressing generalization to unseen subjects. It introduces a CNN enhanced with a convolutional block attention module (CBAM) to extract spatial and channel-wise dependencies from short ECG segments around R-peaks, trained on a large dataset and evaluated under strict unseen-subject splits. The study contributes a sizable database of 1,119 subjects, a segment-based preprocessing pipeline, and a CBAM-enabled architecture that achieves 91.60% AUC, 81.05% sensitivity, and 85.54% specificity on unseen data, demonstrating robust performance in realistic conditions. These results support the feasibility of wearable ECG-based hyperglycemia monitoring with strong generalization, enabling potential real-time, noninvasive management for individuals with diabetes.
Abstract
This paper presents a novel approach to noninvasive hyperglycemia monitoring utilizing electrocardiograms (ECG) from an extensive database comprising 1119 subjects. Previous research on hyperglycemia or glucose detection using ECG has been constrained by challenges related to generalization and scalability, primarily due to using all subjects' ECG in training without considering unseen subjects as a critical factor for developing methods with effective generalization. We designed a deep neural network model capable of identifying significant features across various spatial locations and examining the interdependencies among different features within each convolutional layer. To expedite processing speed, we segment the ECG of each user to isolate one heartbeat or one cycle of the ECG. Our model was trained using data from 727 subjects, while 168 were used for validation. The testing phase involved 224 unseen subjects, with a dataset consisting of 9,000 segments. The result indicates that the proposed algorithm effectively detects hyperglycemia with a 91.60% area under the curve (AUC), 81.05% sensitivity, and 85.54% specificity.
