Readme.txt for hand-normalized 58 subjects OHBM 2017 edition

The is the Bravissima human brain major artery database in NIFTI-1 format.

Enclosed are both the individual and group files for 58 out of the 61 subjects
from the original BraVa database. Subjects "Set8", "Set9", and "BH0008" were not
used as they did not convert properly into NIfTI format.

To read more about how these were generated, see OHBM poster
DOI: 10.7490/f1000research.1114378.1

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Database files included

1) Group Files - Approximate MNI-152 space

 a) All_Brava58.nii.gz - all 58 subject artery locations marked out by incidence 
                        (i.e. how many subjects have an artrey at a voxel) for Left
                        and Right (LH & RH) Hemispheres for the Anterior, Middle, 
                        and Posterior Cerebral Arteries (ACA, MCA, PCA).
 b) Radius_Brava58.nii.gz - records the intersubject mean of the arterial raduii at a voxel.
 c) Split_Brava58.nii.gz - marks artery branch points for all 58 subjects.
 d) Willis_Brava58.nii.gz - marks out the Circle of Willis (CoW).
 e) SideLoc_Brava58.nii.gz - where Side = "Right" or "Left", and Loc is "ACA", "MCA" or "PCA"
                            marks 58 subject arteries location incidences  
 f) SideLoc_Dist_Brava58.nii.gz - where Side = "Right" or "Left", 
                                   and Loc is "ACA", "MCA" or "PCA"
                            marks the approximate distance in mm along the artery starting
                            at the Circle of Willis. 


2) Individual Files:

 a) Subject_ColorCoded.nii.gz - artery locations marked out by 1's 
 b) Subject_ColorCoded_Group.nii.gz - artery locations by group 
                                     (LH or RH ; ACA, MCA or PCA or CoW)
 c) Subject_ColorCoded_Split.nii.gz - locations of artery branches marked out by 1's
 d) Subject_ColorCoded_Radius.nii.gz - size of artery at a voxel
 e) Subject_ColorCoded_Branching.nii.gz - artery locations marked out using a branching code

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Matlab/Octave scripts included

The test.m script is the primary script by which NIFTI files were generated from the
*_ColorCoded.CNG.swc files that can be obtained from the BraVa database
(nitrc.org/projects/breva)

You also need to obtain Jimmy Shen's NIFTI toolbox for Matlab to read in the files
(https://www.mathworks.com/matlabcentral/fileexchange/8797-tools-for-nifti-and-analyze-image)
if you wish to execute "test.m".

You also need a gzip program to zip the files.

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License: Attribution

Our work is derivative of that of the BraVa database that requires you to reference 
it in two ways:

http://cng.gmu.edu/brava

Susan N. Wright, Peter Kochunov, Fernando Mut Maurizio Bergamino, Kerry M. Brown, 
John C. Mazziotta, Arthur W. Toga, Juan R. Cebral, Giorgio A. Ascoli. Digital 
reconstruction and morphometric analysis of human brain arterial vasculature 
from magnetic resonance angiography. NeuroImage, 82, 170-181, (2013). 
http://dx.doi.org/10.1016/j.neuroimage.2013.05.089

It would be swell if you could also reference our project as well: 
nitrc.org/projects/bravissima

Thanks,

Timothy Herron
tjherron at ebire dot org

All opinions contained herein are those of the authors and not of the 
US Department of Veterans Affairs nor of the United States Government.