Please use this identifier to cite or link to this item:
Title: Whole brain diffeomorphic metric mapping via integration of sulcal and gyral curves, cortical surfaces, and images
Authors: Du, J.
Younes, L.
Qiu, A. 
Keywords: Cortical surface
Diffeomorphic metric mapping
Image segmentation
Sulcal and gyral curves
Issue Date: 1-May-2011
Citation: Du, J., Younes, L., Qiu, A. (2011-05-01). Whole brain diffeomorphic metric mapping via integration of sulcal and gyral curves, cortical surfaces, and images. NeuroImage 56 (1) : 162-173. ScholarBank@NUS Repository.
Abstract: This paper introduces a novel large deformation diffeomorphic metric mapping algorithm for whole brain registration where sulcal and gyral curves, cortical surfaces, and intensity images are simultaneously carried from one subject to another through a flow of diffeomorphisms. To the best of our knowledge, this is the first time that the diffeomorphic metric from one brain to another is derived in a shape space of intensity images and point sets (such as curves and surfaces) in a unified manner. We describe the Euler-Lagrange equation associated with this algorithm with respect to momentum, a linear transformation of the velocity vector field of the diffeomorphic flow. The numerical implementation for solving this variational problem, which involves large-scale kernel convolution in an irregular grid, is made feasible by introducing a class of computationally friendly kernels. We apply this algorithm to align magnetic resonance brain data. Our whole brain mapping results show that our algorithm outperforms the image-based LDDMM algorithm in terms of the mapping accuracy of gyral/sulcal curves, sulcal regions, and cortical and subcortical segmentation. Moreover, our algorithm provides better whole brain alignment than combined volumetric and surface registration (Postelnicu et al., 2009) and hierarchical attribute matching mechanism for elastic registration (HAMMER) (Shen and Davatzikos, 2002) in terms of cortical and subcortical volume segmentation. © 2011 Elsevier Inc.
Source Title: NeuroImage
ISSN: 10538119
DOI: 10.1016/j.neuroimage.2011.01.067
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 16, 2022


checked on Aug 16, 2022

Page view(s)

checked on Aug 18, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.