Leveraging Self-supervised Learning for Fetal Cardiac Planes Classification Using Ultrasound Scan Videos
Document Type
Conference Proceeding
Publication Title
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Abstract
Self-supervised learning (SSL) methods are popular since they can address situations with limited annotated data by directly utilising the underlying data distribution. However, adoption of such methods is not explored enough in ultrasound (US) imaging, especially for fetal assessment. We investigate the potential of dual-encoder SSL in utilizing unlabelled US video data to improve the performance of challenging downstream Standard Fetal Cardiac Planes (SFCP) classification using limited labelled 2D US images. We study 7 SSL approaches based on reconstruction, contrastive loss, distillation and information theory, and evaluate them extensively on a large private US dataset. Our observations and finding are consolidated from more than 500 downstream training experiments under different settings. Our primary observation shows that for SSL training, the variance of the dataset is more crucial than its size because it allows the model to learn generalisable representations which improve the performance of downstream tasks. Overall, the BarlowTwins method shows robust performance irrespective of the training settings and data variations, when used as an initialisation for downstream tasks. Notably, full fine-tuning with 1 % of labelled data outperforms ImageNet initialisation by 12 % in F1-score and outperforms other SSL initialisations by at least 4 % in F1-score, thus making it a promising candidate for transfer learning from US video to image data. Our code is available at https://github.com/BioMedIA-MBZUAI/Ultrasound-SSL-FetalCardiacPlanes.
First Page
68
Last Page
78
DOI
10.1007/978-3-031-44521-7_7
Publication Date
10-1-2023
Keywords
Self-supervised Learning, Standard Fetal Cardiac Planes, Ultrasound Scan Videos
Recommended Citation
J.G. Benjamin et al., "Leveraging Self-supervised Learning for Fetal Cardiac Planes Classification Using Ultrasound Scan Videos". In 4th Intl. Workshop of Advances in Simplifying Medical Ultrasound (ASMUS 2023) LNCS, Springer, Cham., vol 14337, pp. 68-78, 2023. doi:10.1007/978-3-031-44521-7_7
Additional Links
https://doi.org/10.1007/978-3-031-44521-7_7
Comments
IR conditions: non-described