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A novel hierarchical template matching model for cardiac motion estimation

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Bhalodiya , Jayendra M., Palit, Arnab, Tiwari, Manoj K., Prasad, Sanjay K., Bhudia, Sunil K., Arvanitis, Theodoros N. and Williams, M. A. (2018) A novel hierarchical template matching model for cardiac motion estimation. Scientific Reports, 8 (1). 4475. doi:10.1038/s41598-018-22543-y ISSN 2045-2322.

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Official URL: https://www.nature.com/articles/s41598-018-22543-y

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Abstract

Cardiovascular disease diagnosis and prognosis can be improved by measuring patient-specific in-vivo local myocardial strain using Magnetic Resonance Imaging. Local myocardial strain can be determined by tracking the movement of sample muscles points during cardiac cycle using cardiac motion estimation model. The tracking accuracy of the benchmark Free Form Deformation (FFD) model is greatly affected due to its dependency on tunable parameters and regularisation function. Therefore, Hierarchical Template Matching (HTM) model, which is independent of tunable parameters, regularisation function, and image-specific features, is proposed in this article. HTM has dense and uniform points correspondence that provides HTM with the ability to estimate local muscular deformation with a promising accuracy of less than half a millimetre of cardiac wall muscle. As a result, the muscles tracking accuracy has been significantly (p<0.001) improved (30%) compared to the benchmark model. Such merits of HTM provide reliably calculated clinical measures which can be incorporated into the decision-making process of cardiac disease diagnosis and prognosis.

Item Type: Journal Article
Subjects: R Medicine > RC Internal medicine
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Cardiovascular system -- Diseases -- Diagnosis, Heart -- Magnetic resonance imaging
Journal or Publication Title: Scientific Reports
Publisher: Nature Publishing Group
ISSN: 2045-2322
Official Date: 14 March 2018
Dates:
DateEvent
14 March 2018Published
20 February 2018Accepted
Volume: 8
Number: 1
Article Number: 4475
DOI: 10.1038/s41598-018-22543-y
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 13 November 2018
Date of first compliant Open Access: 14 November 2018
Funder: Warwick Manufacturing Group
Open Access Version:
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