Tempera: spatial transformer feature pyramid network for cardiac MRI segmentation
File(s)2203.00355v1.pdf (939.04 KB)
Accepted version
Author(s)
Type
Conference Paper
Abstract
Assessing the structure and function of the right ventricle (RV) is important in the diagnosis of several cardiac pathologies. However, it remains more challenging to segment the RV than the left ventricle (LV). In this paper, we focus on segmenting the RV in both short (SA) and long-axis (LA) cardiac MR images simultaneously. For this task, we propose a new multi-input/output architecture, hybrid 2D/3D geometric spatial TransformEr Multi-Pass fEature pyRAmid (Tempera). Our feature pyramid extends current designs by allowing not only a multi-scale feature output but multi-scale SA and LA input images as well. Tempera transfers learned features between SA and LA images via layer weight sharing and incorporates a geometric target transformer to map the predicted SA segmentation to LA space. Our model achieves an average Dice score of 0.836 and 0.798 for the SA and LA, respectively, and 26.31 mm and 31.19 mm Hausdorff distances. This opens up the potential for the incorporation of RV segmentation models into clinical workflows.
Date Issued
2022
Date Acceptance
2022-01-01
Citation
Statistical Atlases and Computational Models of the Heart. Multi-Disease, Multi-View, and Multi-Center Right Ventricular Segmentation in Cardiac MRI Challenge, 2022, 13131, pp.268-276
ISBN
9783030937218
ISSN
0302-9743
Publisher
Springer International Publishing
Start Page
268
End Page
276
Journal / Book Title
Statistical Atlases and Computational Models of the Heart. Multi-Disease, Multi-View, and Multi-Center Right Ventricular Segmentation in Cardiac MRI Challenge
Volume
13131
Copyright Statement
© 2022 Springer Nature Switzerland AG. This version of the contribution has been accepted for publication, after peer review (when applicable) but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/978-3-030-93722-5_29. Use of this Accepted Version is subject to the publisher’s Accepted Manuscript terms of use https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms
Identifier
https://link.springer.com/chapter/10.1007/978-3-030-93722-5_29
Source
12th International Workshop, STACOM 2021
Publication Status
Published
Start Date
2021-09-27
Finish Date
2021-09-27
Coverage Spatial
Strasbourg, France
Date Publish Online
2022-01-14