NDLI: Segmentation-free MRI to CT 3D registration for Cardiac Resynchronization Therapy optimization

Content Provider	IEEE Xplore Digital Library
Author	Betancur, J. Simon, A. Tavard, F. Langella, B. Leclercq, C. Garreau, M.
Copyright Year	2012
Description	Author affiliation: Centre Cardio-Pneumologique, CHU, Rennes, France (Langella, B.) \|\| INSERM, U 1099, Rennes, France (Betancur, J.; Simon, A.; Tavard, F.; Leclercq, C.; Garreau, M.)
Abstract	The purpose of this work is to include tissue and dynamic information from cardiac magnetic resonance (CMR) sequences in a previously proposed fusion framework aiming to optimize Cardiac Resynchronization Therapy (CRT). To do so, the 3D iconic registration between 3D+t cardiac MR and 3D+t cardiac computed tomography (CT) sequences is explored. Two rigid registration approaches have been evaluated: end-diastole (ED) images registration and dynamical time warping (DTW) based registration. DTW is used to align both sequences in time. They are tested on five patients that underwent for CRT. Quantitative evaluation has been performed using the dice score between ED delineations of left ventricle (LV). An average error of 4.71% (std 4.58%) is obtained for ED registration. For DTW registration, an average error of 2.68% (std 2.76%) is obtained using the normalized correlation curves of MR and CT sequences. These results demonstrate the feasibility to perform a 3D registration of MR and CT sequences without the need of temporal interpolation.
Starting Page	701
Ending Page	704
File Size	1043547
Page Count	4
File Format	PDF
ISBN	9781467320764
ISSN	2325887X
e-ISBN	9781467320771
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-09
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Creative Commons Attribution License 2.5 (CCAL)
Subject Keyword	Computed tomography Measurement Transforms Medical treatment Optimization Heart Electrocardiography
Content Type	Text
Resource Type	Article
Subject	Computer Science Cardiology and Cardiovascular Medicine

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