Myocardial deformation from local frequency estimation in tagging MRI

L.C.M. Bruurmijn, H.B. Kause, O. Filatova, R. Duits, A. Fuster, L.M.J. Florack, H.C. Assen, van

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4 Citaten (Scopus)

Samenvatting

We consider a new method to analyse deformation of the myocardial wall from tagging magnetic resonance images. The method exploits the fact that a regular pattern of stripe tags induces a time-dependent frequency covector field tightly coupled to the myocardial tissue and not affected by tag fading. The corresponding local frequency can be disambiguated with the help of the Gabor transform. The transformation of the tagging frequency covector field is governed by the deformation tensor field. Reversely, the deformation (and strain) tensor field can be retrieved from local frequency estimates given at least n (independent) tagging sequences, where n denotes spatial dimension. For the sake of illustration we consider the conventional case n¿=¿2. Moreover, we make use of an overdetermined system by exploiting 4 instead of 2 tagging directions, which contributes to the robustness of the results. The method does not require explicit knowledge of material motion or tag line extraction. Displacement estimations are compared to HARP. Keywords:Tagging Magnetic Resonance Imaging; Myocardial Deformation; Gabor Transform; Cardiac Image Analysis
Originele taal-2Engels
TitelFunctional Imaging and Modeling of the Heart (7th International Conference, FIMH2013, London, UK, June 20-22, 2013. Proceedings)
RedacteurenS. Ourselin, D. Rueckert, N. Smith
Plaats van productieBerlin
UitgeverijSpringer
Pagina's284-291
ISBN van geprinte versie978-3-642-38898-9
DOI's
StatusGepubliceerd - 2013
Evenement7th International Conference on Functional Imaging and Modeling of the Heart, FIMH 2013 - London, Verenigd Koninkrijk
Duur: 20 jun 201322 jun 2013
http://fimh2013.cs.ucl.ac.uk/

Publicatie series

NaamLecture Notes in Computer Science
Volume7945
ISSN van geprinte versie0302-9743

Congres

Congres7th International Conference on Functional Imaging and Modeling of the Heart, FIMH 2013
Verkorte titelFIMH 2013
LandVerenigd Koninkrijk
StadLondon
Periode20/06/1322/06/13
Ander7th International Conference on Functional Imaging and Modeling of the Heart
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Bruurmijn, L. C. M., Kause, H. B., Filatova, O., Duits, R., Fuster, A., Florack, L. M. J., & Assen, van, H. C. (2013). Myocardial deformation from local frequency estimation in tagging MRI. In S. Ourselin, D. Rueckert, & N. Smith (editors), Functional Imaging and Modeling of the Heart (7th International Conference, FIMH2013, London, UK, June 20-22, 2013. Proceedings) (blz. 284-291). (Lecture Notes in Computer Science; Vol. 7945). Berlin: Springer. https://doi.org/10.1007/978-3-642-38899-6_34