Learning from Scarce Labels: Multi-View Echocardiography for Ejection Fraction Prediction
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Electrical Engineering and Systems Science > Image and Video Processing
arXiv:2609.02969 (eess)
[Submitted on 2 Sep 2026]
Title:Learning from Scarce Labels: Multi-View Echocardiography for Ejection Fraction Prediction
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Abstract:We present, to the best of our knowledge, the first publicly available resource for predicting left ventricular ejection fraction (EF) from parasternal long-axis (PLAX) echocardiography. Because no PLAX-EF datasets previously existed, our work focuses on an innovative data generation strategy to overcome this scarcity. By leveraging a time-based correlation between clinical notes and echocardiographic videos, combined with fine-tuning view classifiers and proxy labeling, we created a labeled dataset of over 25,000 PLAX videos. This enables us to train the first reproducible PLAX EF model, achieving a mean absolute error (MAE) of 6.86%. Given that apical four-chamber (A4C) methods, the clinical standard, report MAE values of 6%-7%, our results demonstrate that EF estimation from PLAX views is both feasible and clinically relevant. This surpasses the performance of existing methods and provides a clinically relevant solution for situations where apical views may not be feasible. Going further, we demonstrate that combining PLAX and A4C predictions via simple unweighted late fusion improves both single-view baselines to a 6.37% MAE, underscoring the value of multi-view integration. To promote continued research, we release the dataset labels, trained models, and runnable demos on GitHub, Hugging Face, and Google Colab: this https URL
| Comments: | Accepted for publication at the Journal of Machine Learning for Biomedical Imaging (MELBA) this https URL |
| Subjects: | Image and Video Processing (eess.IV); Computer Vision and Pattern Recognition (cs.CV); Machine Learning (cs.LG) |
| Cite as: | arXiv:2609.02969 [eess.IV] |
| (or arXiv:2609.02969v1 [eess.IV] for this version) | |
| https://doi.org/10.48550/arXiv.2609.02969
arXiv-issued DOI via DataCite (pending registration)
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| Journal reference: | Machine.Learning.for.Biomedical.Imaging. 2026 (2026) |
| Related DOI: | https://doi.org/10.59275/j.melba.2026-8194
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View a PDF of the paper titled Learning from Scarce Labels: Multi-View Echocardiography for Ejection Fraction Prediction, by Zhiyuan Gao and 2 other authors
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