Title
Tract-based probability densities of diffusivity measures in DT-MRI
Abstract
We evaluate probability density functions of diffusivity measures in DTI fiber tracts as biomarkers. For this, we estimate univariate and bivariate densities, such as joint probability densities of the tract arc length and FA, MD, RD, and AD, in the transcallosal fibers in the brain. We demonstrate the utility of estimated densities in hypothesis testing of differences between a group of patients with VCI and a control group. We also use the estimated densities in classifying individual subjects in these two groups. Results show that these estimates and derived quantities, such as entropy, can detect group differences with high statistical power as well as help obtain low classification errors.
Year
DOI
Venue
2010
10.1007/978-3-642-15705-9_66
MICCAI
Keywords
Field
DocType
hypothesis test,probability density,probability density function,control group,statistical power
Joint probability distribution,Pattern recognition,Fractional anisotropy,Artificial intelligence,Statistics,Bivariate analysis,Univariate,Statistical power,Probability density function,Thermal diffusivity,Statistical hypothesis testing,Mathematics
Conference
Volume
Issue
ISSN
13
Pt 1
0302-9743
ISBN
Citations 
PageRank 
3-642-15704-1
1
0.36
References 
Authors
7
2
Name
Order
Citations
PageRank
Çagatay Demiralp110.69
David H. Laidlaw21781234.58