Title
Combining anatomical manifold information via diffeomorphic metric mappings for studying cortical thinning of the cingulate gyrus in schizophrenia.
Abstract
Spatial normalization is a crucial step in assessing patterns of neuroanatomical structure and function associated with health and disease. Errors that occur during spatial normalization can influence hypothesis testing due to the dimensionalities of mapping algorithms and anatomical manifolds (landmarks, curves, surfaces, volumes) used to drive the mapping algorithms. The primary aim of this paper is to improve statistical inference using multiple anatomical manifolds and large deformation diffeomorphic metric mapping (LDDMM) algorithms. We propose that combining information generated by the various manifolds and algorithms improves the reliability of hypothesis testing. We used this unified approach to assess variation in the thickness of the cingulate gyrus in subjects with schizophrenia and healthy comparison subjects. Three different LDDMM algorithms for mapping landmarks, curves and triangulated meshes were used to transform thickness maps of the cingulate surfaces into an atlas coordinate system. We then tested for group differences by combining the information from the three types of anatomical manifolds and LDDMM mapping algorithms. The unified approach provided reliable statistical results and eliminated ambiguous results due to surface mismatches. Subjects with schizophrenia had non-uniform cortical thinning over the left and right cingulate gyri, especially in the anterior portion, as compared to healthy comparison subjects.
Year
DOI
Venue
2007
10.1016/j.neuroimage.2007.05.007
NeuroImage
Keywords
Field
DocType
Large deformation diffeomorphic metric mapping (LDDMM),The Laplace–Beltrami operator,Gaussian random field,Cingulate gyrus,Cortical thickness,Schizophrenia
Coordinate system,Computer vision,Large deformation diffeomorphic metric mapping,Spatial normalization,Gyrus,Statistical inference,Artificial intelligence,Manifold,Statistical hypothesis testing,Diffeomorphism,Mathematics
Journal
Volume
Issue
ISSN
37
3
1053-8119
Citations 
PageRank 
References 
15
0.94
27
Authors
8
Name
Order
Citations
PageRank
Anqi Qiu157138.34
Laurent Younes21490120.48
Lei Wang320124.38
J Tilak Ratnanather412312.79
Sarah K Gillepsie5150.94
Gillian Kaplan6150.94
John Csernansky7150.94
Michael I Miller83123422.82