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Automatic Left Ventricular Cavity Segmentation via Deep Spatial Sequential Network in 4D Computed Tomography Studies

arXiv 2412.12853 ↗First posted 17 Dec 2024eess.IV cs.CVcited by 0

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Abstract (arXiv)

Automated segmentation of left ventricular cavity (LVC) in temporal cardiac image sequences (multiple time points) is a fundamental requirement for quantitative analysis of its structural and functional changes. Deep learning based methods for the segmentation of LVC are the state of the art; however, these methods are generally formulated to work on single time points, and fails to exploit the complementary information from the temporal image sequences that can aid in segmentation accuracy and consistency among the images across the time points. Furthermore, these segmentation methods perform poorly in segmenting the end-systole (ES) phase images, where the left ventricle deforms to the smallest irregular shape, and the boundary between the blood chamber and myocardium becomes inconspicuous. To overcome these limitations, we propose a new method to automatically segment temporal cardiac images where we introduce a spatial sequential (SS) network to learn the deformation and motion characteristics of the LVC in an unsupervised manner; these characteristics were then integrated with sequential context information derived from bi-directional learning (BL) where both chronological and reverse-chronological directions of the image sequence were used. Our experimental results on a cardiac computed tomography (CT) dataset demonstrated that our spatial-sequential network with bi-directional learning (SS-BL) method outperformed existing methods for LVC segmentation. Our method was also applied to MRI cardiac dataset and the results demonstrated the generalizability of our method.

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References · 15

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  9. 2015A Combined Deep-Learning and Deformable-Model Approach to Fully Automatic Segmentation of the Left Ventricle in Cardiac MRIcited by 21
  10. 2017Automatic Segmentation and Disease Classification Using Cardiac Cine MR Imagescited by 13
  11. 20183D Consistent & Robust Segmentation of Cardiac Images by Deep Learning with Spatial Propagationcited by 11
  12. 2018Left Ventricle Segmentation via Optical-Flow-Net from Short-axis Cine MRI: Preserving the Temporal Coherence of Cardiac Motioncited by 7
3 more
  1. 2017Multi-Planar Deep Segmentation Networks for Cardiac Substructures from MRI and CTcited by 5
  2. 2018Multi-views Fusion CNN for Left Ventricular Volumes Estimation on Cardiac MR Imagescited by 3
  3. 2017Full Quantification of Left Ventricle via Deep Multitask Learning Network Respecting Intra- and Inter-Task Relatednesscited by 2

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