Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.neuroimage.2007.08.043
Title: Intrinsic and extrinsic analysis in computational anatomy
Authors: Qiu, A. 
Younes, L.
Miller, M.I.
Keywords: Extrinsic analysis
Intrinsic analysis
Nodal domain
The Laplace-Beltrami operator
Issue Date: 15-Feb-2008
Citation: Qiu, A., Younes, L., Miller, M.I. (2008-02-15). Intrinsic and extrinsic analysis in computational anatomy. NeuroImage 39 (4) : 1803-1814. ScholarBank@NUS Repository. https://doi.org/10.1016/j.neuroimage.2007.08.043
Abstract: We present intrinsic and extrinsic methods for studying anatomical coordinates in order to perform statistical inference on random physiological signals F across clinical populations. In both intrinsic and extrinsic methods, we introduce generalized partition functions of the coordinates, ψ(x), x ∈ M, which are used to construct a random field of F on M as statistical model. In the intrinsic analysis, such partition functions are built intrinsically for individual anatomical coordinate based on Courant's theorem on nodal analysis via self-adjoint linear elliptic differential operators. In contrast, the extrinsic method needs only one set of partition functions for a template coordinate system, and then applies to each anatomical coordinate system via diffeomorphic transformation. For illustration, we apply both intrinsic and extrinsic methods to a clinical study: cortical thickness variation of the left cingulate gyrus in schizophrenia. Both methods show that the left cingulate gyrus tends to become thinner in schizophrenia relative to the healthy control population. However, the intrinsic method increases the statistical power. © 2007 Elsevier Inc. All rights reserved.
Source Title: NeuroImage
URI: http://scholarbank.nus.edu.sg/handle/10635/67125
ISSN: 10538119
DOI: 10.1016/j.neuroimage.2007.08.043
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

15
checked on Oct 18, 2018

WEB OF SCIENCETM
Citations

12
checked on Oct 10, 2018

Page view(s)

51
checked on Sep 29, 2018

Google ScholarTM

Check

Altmetric


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