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A novel model-based 3D+time left ventricular segmentation technique

O'Brien, Stephen, Ghita, Ovidiu and Whelan, Paul F. orcid logoORCID: 0000-0002-2029-1576 (2011) A novel model-based 3D+time left ventricular segmentation technique. IEEE Transactions on Medical Imaging, 30 (2). pp. 461-474. ISSN 0278-0062

A common approach to model-based segmentation is to assume a top-down modelling strategy. However, this is not feasible for complex 3D+time structures such as the cardiac left ventricle due to increased training requirements, aligning difficulties and local minima in resulting models. As our main contribution, we present an alternate bottom-up modelling approach. By combining the variation captured in multiple dimensionally-targeted models at segmentation-time we create a scalable segmentation framework that does not suffer from the ’curse of dimensionality’. Our second contribution involves a flexible contour coupling technique that allows our segmentation method to adapt to unseen contour configurations outside the training set. This is used to identify the endo- and epi-cardium contours of the left ventricle by coupling them at segmentationtime, instead of at model-time. We apply our approach to 33 3D+time MRI cardiac datasets and perform comprehensive evaluation against several state-of-the-art works. Quantitative evaluation illustrates that our method requires significantly less training than state-of-the-art model-based methods, while maintaining or improving segmentation accuracy.
Item Type:Article (Published)
Uncontrolled Keywords:computer vision; active shape model (ASM); spatio-temporal left ventricle dynamics; contour coupling; ASM optimisation
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/TMI.2010.2086465
Copyright Information:© 2011 IEEE/ Personal use of this material is permitted. permission fro IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:18577
Deposited On:17 Jul 2013 08:28 by Mark Sweeney . Last Modified 14 Mar 2023 13:58

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