ArticleCirculation reports2026
Video-Based Automatic Quantification of Leg Edema: a Pilot Study in Patients With Hemodialysis With and Without Heart Failure - Proof-of-Concept Study.
Article in Circulation reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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19 authors.
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Abstract
Background: Reliable assessment of pitting edema remains a challenge, especially in remote care, because it is inherently subjective. We developed a video-based deep learning (DL) model to objectively classify the severity of pitting edema. Methods and Results: A total of 247 videos from 34 consecutive hemodialysis patients were analyzed. A convolutional neural-network (EfficientNetB0) was trained using pre and postpressing pretibial images graded on a 0-4 scale. The model achieved 81.5% accuracy, 81.2% sensitivity, and 81.9% specificity in distinguishing grades 3-4 edema from grades 0-1. For extreme cases (grade 0 vs. 4), accuracy improved to 85.8%. Conclusions: This pilot study demonstrated feasibility of video-based DL for edema detection. Larger, more diverse datasets and clinical validation are needed for generalization.
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