NDLI: Dynamic registration of cardiac US and CT data using Fourier descriptors and Dynamic Time Warping

Content Provider	IEEE Xplore Digital Library
Author	Tavard, F. Simon, A. Hernandez, A.I. Betancur, J. Donal, E. Garreau, M.
Copyright Year	2012
Description	Author affiliation: INSERM, U1099, Rennes, F-35000, France (Tavard, F.; Simon, A.; Hernandez, A.I.; Betancur, J.; Donal, E.; Garreau, M.)
Abstract	Cardiac Resynchronization Therapy (CRT) can be optimized by the fusion of anatomical, functional and electrical information in a unified framework in order to identify the most effective pacing sites. The aim of this work is to perform a registration between dynamic CT and ultrasound (US) images (2D speckle tracking mode). The proposed registration approach is based on a contour to surface scheme, decomposed in four steps: (1) the temporal synchronization of data; (2) the segmentation of the left ventricle endocardial surface from the 3D+t CT data; (3) the segmentation and tracking of the myocardium from the 2D+t US data; (4) the registration of US contour with the CT surface. The originality of the method relies on the use of Fourier descriptors and Dynamic Time Warping (DTW) to handle different spatial and temporal resolutions as well as dissimilar cardiac rhythms between CT and US data. An evaluation on simulated data is described as well as results obtained on three patient databases.
Starting Page	198
Ending Page	203
File Size	810574
Page Count	6
File Format	PDF
ISBN	9781467325851
ISSN	2154512X
e-ISBN	9781467325844
DOI	10.1109/IPTA.2012.6469516
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-15
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Measurement Image segmentation 2D US speckle tracking Computed tomography Multimodal registration Fourier descriptors cardiac imaging Speckle Dynamic Time Warping Spatial resolution 3D dynamic CT Biomedical imaging
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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