Early registration of diffusion tensor images for group tractography of dystonia patients
نویسندگان
چکیده
منابع مشابه
Evaluations of diffusion tensor image registration based on fiber tractography
BACKGROUND Diffusion Tensor Magnetic Resonance Imaging (DT-MRI, also known as DTI) measures the diffusion properties of water molecules in tissues and to date is one of the main techniques that can effectively study the microstructures of the brain in vivo. Presently, evaluation of DTI registration techniques is still in an initial stage of development. METHODS AND RESULTS In this paper, six ...
متن کاملNonlinear Registration of Diffusion Tensor Images Using Directional Information
G. K. Rohde1,2, S. Pajevic3, C. Pierpaoli1 STBB/LIMB/NICHD, National Institutes of Health, Bethesda, Maryland, United States, Dept. of Mathematics, University of Maryland, College Park, Maryland, United States, MSCL/CIT, National Institutes of Health, Bethesda, Maryland, United States Introduction In Diffusion Tensor (DT) MRI [1], local diffusion properties are described via a 3x3 symmetric dif...
متن کاملNon-rigid registration of diffusion tensor MR images
We propose a novel variational framework for the dense non-rigid registration of Diffusion Tensor Images (DTI). Our approach relies on the differential geometrical properties of the Riemannian manifold of multivariate normal distributions endowed with the metric derived from the Fisher information matrix. The availability of closed form expressions for the geodesics and the Christoffel symbols ...
متن کاملIntermediate templates guided groupwise registration of diffusion tensor images
Registration of a population of diffusion tensor images (DTIs) is one of the key steps in medical image analysis, and it plays an important role in the statistical analysis of white matter related neurological diseases. However, pairwise registration with respect to a pre-selected template may not give precise results if the selected template deviates significantly from the distribution of imag...
متن کاملLog-Domain Diffeomorphic Registration of Diffusion Tensor Images
Diffusion tensor imaging provides information about deep white matter anatomy that structural magnetic resonance images typically fail to resolve. Non-linear registration of diffusion tensor images, for which a few methods already exist, allows us to capture the deformations of these structures that would otherwise go unobserved. Here, we build on an existing method for diffeomorphic registrati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2012
ISSN: 1053-1807
DOI: 10.1002/jmri.23806