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Echocardiographic image segmentation using deep Res-U network
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DOI：10.1016/j.bspc.2020.102248.png)
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Abstract
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Cardiac function assessment using echocardiography is a crucial step in daily cardiology. However, cardiac boundary segmentation and in particular, ventricle segmentation is a challenging procedure due to shadows and speckle noise. Manual segmentation of the cardiac boundary is a time-consuming process which rules out conventional segmentation for many situations such as emergency cases and image-guided robotic interventions. Therefore, providing an efficient and robust autonomous segmentation method is crucial for such applications. In this paper, a fast and fully automatic deep learning framework for left ventricle segmentation is proposed. This model couples the advantages of ResNet and U-Net to provide reliable segmentation results. We propose a new encoder in the U-Net, defined as ResU which is a modified version of ResNet-50 and has a superiority over ResNet in data denoising. We trained this model on the dataset CAMUS (Cardiac Acquisitions for Multi-structure Ultrasound Segmentation) which is a large, publicly available and fully annotated dataset for 2D echocardiographic assessment. It is shown that this model outperforms other state-of-the-art methods in terms of accuracy with a Dice metric of 0.97 +/- 0.01.
Keywords:
Echocardiography
Segmentation
Deep learning
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