Modeling of cardiac motion using wavelets : comparison with Fourier-based models

Pappas, Costas/ Dimitriadis, Alexis/ Maglaveras, Nicos/ Stalidis, George/ Δημητριάδης, Αλέξης/ Παππάς, Κωνσταντίνος/ Σταλίδης, Γιώργος/ Μαγκλαβέρας, Νίκος

Institution and School/Department of submitter: ΤΕΙ Θεσσαλονίκης
Keywords: Physiological Models;Wavelet Transforms;Biomechanics;Cardiology;Biomedical MRI;Medical Image Processing;Image Motion Analysis
Issue Date: 1998
Publisher: IEEE
Citation: Computers in Cardiology, IEEE Comp. Soc. Press, 1997
Stalidis ,Pappas, Maglaveras ,Dimitriadis, G. (-). Parametric 4D Modeling of Myocardial Surface Motion Applied to MRI Data. Πρακτικά συνεδρίου από -ο Computers in Cardiology που διεξήχθη σε -. Φορέας διεξαγωγής -. -: -.
Abstract: In this paper, a 4-D parametric model based on wavelets is applied to the representation of the shape and motion of myocardial surfaces. It is qualitatively, and quantitatively evaluated on multi-phase cardiac MRI data and compared with the previously presented 4-D Fourier-based model. The wavelet-based model uses a number of boundary points, extracted from the imaging data, as samples on which a moving 3-D surface is fitted. The resulting model is continuous and smooth and provides a full description of cardiac motion in 3-D, from which measurements for quantitative motion analysis can be derived. Application results showed that the localized and multi-resolution nature of wavelets allowed more accurate representation of cardiac shape and motion than the Fourier model, especially regarding shape details and fast deformation, while the Fourier model provided a smoother surface, more robust to noisy data
Description: Δημοιεύσεις μελών--ΣΔΟ--Τμήμα Εμπορίας και Διαφήμισης,1997
ISSN: 0276-6547
Other Identifiers: 10.1109/CIC.1998.731978
Appears in Collections:Δημοσιεύσεις σε Περιοδικά

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