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Left ventricular ejection fraction (LVEF) assessment depends on echocardiography, limiting access in primary care and resource-constrained settings. We developed a multimodal machine-learning framework that combines engineered 12-lead ECG…

Machine Learning · Computer Science 2026-04-30 Catherine Ning , Yu Ma , Cindy Beini Wang , Sean McMahon , Joseph Radojevic , Steven Zweibel , Dimitris Bertsimas

Left-ventricular ejection fraction (LVEF) is an important indicator of heart failure. Existing methods for LVEF estimation from video require large amounts of annotated data to achieve high performance, e.g. using 10,030 labeled…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Weihang Dai , Xiaomeng Li , Xinpeng Ding , Kwang-Ting Cheng

Left ventricular ejection fraction (LVEF) is a key indicator of cardiac function and plays a central role in the diagnosis and management of cardiovascular disease. Echocardiography, as a readily accessible and non-invasive imaging…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Shravan Saranyan , Pramit Saha

Echocardiography is a cornerstone for managing heart failure (HF), with Left Ventricular Ejection Fraction (LVEF) being a critical metric for guiding therapy. However, manual LVEF assessment suffers from high inter-observer variability,…

Image and Video Processing · Electrical Eng. & Systems 2026-05-26 Jyun-Ping Kao , Jiaxin Yang , C. -C. Jay Kuo , Jonghye Woo

Learning spatiotemporal features is an important task for efficient video understanding especially in medical images such as echocardiograms. Convolutional neural networks (CNNs) and more recent vision transformers (ViTs) are the most…

Computer Vision and Pattern Recognition · Computer Science 2022-09-12 Rand Muhtaseb , Mohammad Yaqub

Low left ventricular ejection fraction (LEF) frequently remains undetected until progression to symptomatic heart failure, underscoring the need for scalable screening strategies. Although artificial intelligence-enabled electrocardiography…

Machine Learning · Computer Science 2026-04-07 Ya Zhou , Tianxiang Hao , Ziyi Cai , Haojie Zhu , Kejun He , Jia Liu , Xiaohan Fan , Jing Yuan

The echocardiographic measurement of left ventricular ejection fraction (LVEF) is fundamental to the diagnosis and classification of patients with heart failure (HF). In order to quantify LVEF automatically and accurately, this paper…

Accurate LVEF measurement is important in clinical practice as it identifies patients who may be in need of life-prolonging treatments. This paper presents a deep learning based framework to automatically estimate left ventricular ejection…

Image and Video Processing · Electrical Eng. & Systems 2023-04-18 Meghan Muldoon , Naimul Khan

The left ventricular of ejection fraction is one of the most important metric of cardiac function. It is used by cardiologist to identify patients who are eligible for lifeprolonging therapies. However, the assessment of ejection fraction…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Lhuqita Fazry , Asep Haryono , Nuzulul Khairu Nissa , Sunarno , Naufal Muhammad Hirzi , Muhammad Febrian Rachmadi , Wisnu Jatmiko

Ejection fraction (EF) of the left ventricle (LV) is considered as one of the most important measurements for diagnosing acute heart failure and can be estimated during cardiac ultrasound acquisition. While recent successes in deep learning…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Sarina Thomas , Qing Cao , Anna Novikova , Daria Kulikova , Guy Ben-Yosef

Cardiac function assessment aims at predicting left ventricular ejection fraction (LVEF) given an echocardiogram video, which requests models to focus on the changes in the left ventricle during the cardiac cycle. How to assess cardiac…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Guanqi Chen , Guanbin Li

In this work, we address the challenge of adaptive pediatric Left Ventricular Ejection Fraction (LVEF) assessment. While Test-time Training (TTT) approaches show promise for this task, they suffer from two significant limitations. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Jie Liu , Tiexin Qin , Hui Liu , Yilei Shi , Lichao Mou , Xiao Xiang Zhu , Shiqi Wang , Haoliang Li

Recent studies have confirmed cardiovascular diseases remain responsible for highest death toll amongst non-communicable diseases. Accurate left ventricular (LV) volume estimation is critical for valid diagnosis and management of various…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 F. Terhag , P. Knechtges , A. Basermann , R. Tempone

Background. Studies have shown that the conventional left ventricular mechanical dyssynchrony (LVMD) parameters have their own statistical limitations. The purpose of this study is to extract new LVMD parameters from the phase analysis of…

Medical Physics · Physics 2023-12-22 Zhuo He , Xinwei Zhang , Chen Zhao , Zhiyong Qian , Yao Wang , Xiaofeng Hou , Jiangang Zou , Weihua Zhou

This work aims efficiently estimating the posterior distribution of kinetic parameters for dynamic positron emission tomography (PET) imaging given a measurement of time of activity curve. Considering the inherent information loss from…

Medical Physics · Physics 2023-10-25 Xiaofeng Liu , Thibault Marin , Tiss Amal , Jonghye Woo , Georges El Fakhri , Jinsong Ouyang

Synthetic data generation represents a significant advancement in boosting the performance of machine learning (ML) models, particularly in fields where data acquisition is challenging, such as echocardiography. The acquisition and labeling…

Machine Learning · Computer Science 2025-08-28 Nima Kondori , Hanwen Liang , Hooman Vaseli , Bingyu Xie , Christina Luong , Purang Abolmaesumi , Teresa Tsang , Renjie Liao

Ejection fraction (EF) is a key indicator of cardiac function, allowing identification of patients prone to heart dysfunctions such as heart failure. EF is estimated from cardiac ultrasound videos known as echocardiograms (echo) by manually…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Masoud Mokhtari , Teresa Tsang , Purang Abolmaesumi , Renjie Liao

Accurately predicting counterfactual user feedback is essential for building effective recommender systems. However, latent confounding bias can obscure the true causal relationship between user feedback and item exposure, ultimately…

Information Retrieval · Computer Science 2025-05-23 Jianfeng Deng , Qingfeng Chen , Debo Cheng , Jiuyong Li , Lin Liu , Shichao Zhang

Recent advances in Deep Learning and probabilistic modeling have led to strong improvements in generative models for images. On the one hand, Generative Adversarial Networks (GANs) have contributed a highly effective adversarial learning…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Yang He , Bernt Schiele , Mario Fritz

Recently, machine learning has been successfully applied to model-based left ventricle (LV) segmentation. The general framework involves two stages, which starts with LV localization and is followed by boundary delineation. Both are driven…

Computer Vision and Pattern Recognition · Computer Science 2015-07-29 Peng Sun , Haoyin Zhou , Devon Lundine , James K. Min , Guanglei Xiong
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