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Being born small carries significant health risks, including increased neonatal mortality and a higher likelihood of future cardiac diseases. Accurate estimation of gestational age is critical for monitoring fetal growth, but traditional…

Image and Video Processing · Electrical Eng. & Systems 2026-01-15 César Díaz-Parga , Marta Nuñez-Garcia , Maria J. Carreira , Gabriel Bernardino , Nicolás Vila-Blanco

This study applies a technique to expand the number of images to a level that allows deep learning. And the applicability of the Sauvegrain method through deep learning with relatively few elbow X-rays is studied. The study was composed of…

Computer Vision and Pattern Recognition · Computer Science 2018-09-20 Seung Bin Baik , Keum Gang Cha

Foundation models (FMs) promise to extract unified representations that generalize across downstream tasks. They have emerged across fields, including electroencephalography (EEG), but it is less clear how effective they are in this…

Smart wearables enable continuous tracking of established biomarkers such as heart rate, heart rate variability, and blood oxygen saturation via photoplethysmography (PPG). Beyond these metrics, PPG waveforms contain richer physiological…

Aging is a highly complex and heterogeneous process that progresses at different rates across individuals, making biological age (BA) a more accurate indicator of physiological decline than chronological age. While previous studies have…

Genomics · Quantitative Biology 2025-10-24 Huifa Li , Feilong Tang , Haochen Xue , Yulong Li , Xinlin Zhuang , Bin Zhang , Eran Segal , Imran Razzak

Algorithmic bias in healthcare mirrors existing data biases. However, the factors driving unfairness are not always known. Medical devices capture significant amounts of data but are prone to errors; for instance, pulse oximeters…

Machine Learning · Computer Science 2024-08-09 Inês Martins , João Matos , Tiago Gonçalves , Leo A. Celi , A. Ian Wong , Jaime S. Cardoso

Machine Learning (ML) algorithms are vital for supporting clinical decision-making in biomedical informatics. However, their predictive performance can vary across demographic groups, often due to the underrepresentation of historically…

Machine Learning · Computer Science 2025-03-04 Ioannis Bilionis , Ricardo C. Berrios , Luis Fernandez-Luque , Carlos Castillo

Cardiac abnormalities affecting heart rate and rhythm are commonly observed in both healthy and acutely unwell people. Although many of these are benign, they can sometimes indicate a serious health risk. ECG monitors are typically used to…

Signal Processing · Electrical Eng. & Systems 2018-07-12 Stewart Whiting , Samuel Moreland , Jason Costello , Glen Colopy , Christopher McCann

In recent years, there are various methods of estimating Biological Age (BA) have been developed. Especially with the development of machine learning (ML), there are more and more types of BA predictions, and the accuracy has been greatly…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Zhaonian Zhang , Richard Jiang , Danny Crookes , Paul Chazot

Photoplethsmography (PPG)-based individual identification aiming at recognizing humans via intrinsic cardiovascular activities has raised extensive attention due to its high security and resistance to mimicry. However, this kind of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Riling Wei , Hanjie Chen , Kelu Yao , Chuanguang Yang , Jun Wang , Chao Li

Brain age is the estimate of biological age derived from neuroimaging datasets using machine learning algorithms. Increasing brain age with respect to chronological age can reflect increased vulnerability to neurodegeneration and cognitive…

Quantitative Methods · Quantitative Biology 2024-02-13 Saurabh Sihag , Gonzalo Mateos , Alejandro Ribeiro

Individuals age differently depending on a multitude of different factors such as lifestyle, medical history and genetics. Often, the global chronological age is not indicative of the true ageing process. An organ-based age estimation would…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Karim Armanious , Sherif Abdulatif , Anish Rao Bhaktharaguttu , Thomas Küstner , Tobias Hepp , Sergios Gatidis , Bin Yang

Wrist photoplethysmography (PPG) allows unobtrusive monitoring of the heart rate (HR). PPG is affected by the capillary blood perfusion and the pumping function of the heart, which generally deteriorate with age and due to presence of…

Clinical laboratory tests provide essential biochemical measurements for diagnosis and treatment, but are limited by intermittent and invasive sampling. In contrast, photoplethysmogram (PPG) is a non-invasive, continuously recorded signal…

Wearables are widely used for mobile health monitoring, and photoplethysmography (PPG) is a key sensing modality for heart rate and related physiological measurements. However, public in-the-wild PPG datasets remain largely wrist-centric or…

Human-Computer Interaction · Computer Science 2026-05-20 Jiayi Shao , Jiaying Ye , Shengyao Liu , Zachary Englhardt , Girish Narayanswamy , Vikram Iyer , Qiuyue Shirley Xue

Accurate phase estimation at the edge of data segments is crucial for EEG applications such as EEG-TMS in offline and real-time data analysis. Our research evaluates the phase estimation performance of four commonly used methods…

Neurons and Cognition · Quantitative Biology 2026-04-03 Miriam Kirchhoff , Johanna Rösch , Maria Ermolova , Oskari Ahola , Sarah Harders , Juliana Hougland , Ulf Ziemann

Although HRV (Heart Rate Variability) analyses have been carried out for several decades, several limiting factors still make these analyses useless from a clinical point of view. The present paper aims at overcoming some of these limits by…

Medical Physics · Physics 2013-11-07 Orazio A. Barra , Luciano Moretti

Cardiovascular disease, the leading cause of death globally, is an age-related disease. Understanding the morphological and functional changes of the heart during ageing is a key scientific question, the answer to which will help us define…

Image and Video Processing · Electrical Eng. & Systems 2022-10-11 Mengyun Qiao , Berke Doga Basaran , Huaqi Qiu , Shuo Wang , Yi Guo , Yuanyuan Wang , Paul M. Matthews , Daniel Rueckert , Wenjia Bai

Background: While deep learning technology, which has the capability of obtaining latent representations based on large-scale data, can be a potential solution for the discovery of a novel aging biomarker, existing deep learning methods for…

Machine Learning · Computer Science 2023-02-02 Seong-Eun Moon , Ji Won Yoon , Shinyoung Joo , Yoohyung Kim , Jae Hyun Bae , Seokho Yoon , Haanju Yoo , Young Min Cho

Dental age is one of the most reliable methods to identify an individual's age. By using dental panoramic radiography (DPR) images, physicians and pathologists in forensic sciences try to establish the chronological age of individuals with…

Image and Video Processing · Electrical Eng. & Systems 2023-10-31 Isa Atas , Cuneyt Ozdemir , Musa Atas , Yahya Dogan