Affine Coregistration of Diffusion Tensor Magnetic Resonance Images Using Mutual Information
نویسندگان
چکیده
In this paper, we present an affine image coregistration technique for Diffusion Tensor Magnetic Resonance Imaging (DT-MRI) data sets based on mutual information. The technique is based on a multichannel approach where the diffusion weighted images are aligned according to the corresponding acquisition gradient directions. Also, in addition to the coregistration of the DT-MRI data sets, an appropriate reorientation of the diffusion tensor is worked out in order to remain consistent with the corresponding underlying anatomical structures. This reorientation strategy is determined from the spatial transformation while preserving the diffusion tensor shape. The method is fully automatic and has the advantage to be independent of the applied diffusion framework.
منابع مشابه
Entropy-based coregistration for DT-MR images using an efficient tensor shape preserving reorientation strategy
A. Leemans, J. Sijbers, M. Verhoye, A. Van der Linden Physics, University of Antwerp, Antwerp, Belgium, Biomedical Sciences, University of Antwerp, Antwerp, Belgium Introduction and Purpose Diffusion tensor magnetic resonance imaging (DT-MRI) is becoming an important diagnostic tool for various neuropathological diseases [1, 2]. It is often desirable to combine multiple DT-MRI data sets of the ...
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