Deep learning based fully automatic segmentation of the left ventricular endocardium and epicardium from cardiac cine MRI

Yan Wang, Yue Zhang, Zhaoying Wen, Bing Tian, Evan Kao, Xinke Liu, Wanling Xuan, Karen Ordovas, David Saloner, Jing Liu

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Background: The segmentation of cardiac medical images is a crucial step for calculating clinical indices such as wall thickness, ventricular volume, and ejection fraction. Methods: In this study, we introduce a method named LsUnet that combines multi-channel, fully convolutional neural network, and annular shape level-set methods for efficiently segmenting cardiac cine magnetic resonance (MR) images. In this method, the multi-channel deep learning algorithm is applied to train the segmentation task to extract the left ventricle (LV) endocardial and epicardial contours. Next, the segmentation contours from the multi-channel deep learning method are incorporated into a level-set formulation, which is dedicated explicitly to detecting annular shapes to assure the segmentation’s accuracy and robustness. Results: The proposed automatic approach was evaluated on 95 volumes (total 1,076 slices, ~80% as for training datasets, ~20% 2D as for testing datasets). This combined multi-channel deep learning and annular shape level-set segmentation method achieved high accuracy with average Dice values reaching 92.15% and 95.42% for LV endocardium and epicardium delineation, respectively, in comparison to the reference standard (the manual segmentation). Conclusions: A novel method for fully automatic segmentation of the LV endocardium and epicardium from different MRI datasets is presented. The proposed workflow is accurate and robust compared to the reference and other state-of-the-art methods.

Original languageEnglish (US)
Pages (from-to)1600-1612
Number of pages13
JournalQuantitative Imaging in Medicine and Surgery
Issue number4
StatePublished - Apr 2021


  • Deep learning
  • Left ventricle segmentation (LV segmentation)
  • Wall thickness

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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