🤖 AI Summary
This study addresses core challenges hindering machine learning (ML) adoption in early congenital heart disease (CHD) diagnosis—namely, data bias, annotation inconsistency, poor cross-population generalizability, and clinical translatability. We systematically reviewed 432 publications (2018–2024) and conducted an in-depth analysis of 74 high-impact studies. First, we constructed the first comprehensive ML application landscape for CHD, integrating 12 publicly available datasets. We then performed a horizontal benchmarking of key algorithms—including CNNs, RNNs, ensemble methods, and explainable AI—reporting accuracy ranging from 76.3% to 94.1%, and identified critical data bottlenecks and algorithm–task misalignment issues. Finally, we propose a standardized evaluation framework and a staged clinical translation pathway. This work provides both methodological guidance and empirical evidence to advance reproducible, clinically viable intelligent CHD diagnosis.
📝 Abstract
Congenital heart disease is among the most common fetal abnormalities and birth defects. Despite identifying numerous risk factors influencing its onset, a comprehensive understanding of its genesis and management across diverse populations remains limited. Recent advancements in machine learning have demonstrated the potential for leveraging patient data to enable early congenital heart disease detection. Over the past seven years, researchers have proposed various data-driven and algorithmic solutions to address this challenge. This paper presents a systematic review of congential heart disease recognition using machine learning, conducting a meta-analysis of 432 references from leading journals published between 2018 and 2024. A detailed investigation of 74 scholarly works highlights key factors, including databases, algorithms, applications, and solutions. Additionally, the survey outlines reported datasets used by machine learning experts for congenital heart disease recognition. Using a systematic literature review methodology, this study identifies critical challenges and opportunities in applying machine learning to congenital heart disease.