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== UNC Data ==

=== Data Access ===

* [[Media:UNCData.tgz]]
* There are 2 autistic children and 2 normal controls scanned at 2 years with follow up at 4 years.
  - Group-Gender\Age    2 years old    4 years old
  - Autistic male       5157-005-01    5157-005-02
  - Autistic female     5074-004-01    5074-004-02
  - Control male        5150-004-01    5150-004-02
  - Control female      5128-004-01    5128-004-02
* In each subject folder (????-???), there are two folders corresponding to each scan:
** ????-???-01: Time 1 (scan at 2 years old)
** ????-???-02: Time 2 (scan at 4 years old)
* Each scan folder contains 5 files:
** ????-???-??_10_T1.nrrd: T1-weigthed image
** ????-???-??_10_t2_fit.nrrd: T2-weigthed image
** ????-???-??_10_pd_fit.nrrd: PD-weigthed image
** ????-???-??_10_t2_fit_hard.nrrd: Tissue segmentation label map image
** ????-???-??_combSegHAVCPG_newHippo.nrrd: Subcortical structures segmentation

=== Data Description ===

* '''Structural MRI''': All scans are conducted on a 1.5 T Siemens scanner. Sequences include: a T1 weighted inversion recovery magnetization preparation (IR Prep) sequence with a slice thickness of 1.5 mms in the coronal plane, TE=5.4, TR=12.3, NEX=1, FOV=20 cm; flip angle = 40o; 256 X 192 matrix. PD/ T2 weighted fast spin-echo images will be acquired with the following parameters: 3.0 mm coronal slices, TE = 17/75, TR = 7200 ms, NEX = 1, FOV=20, 256 X 192 matrix.
* '''Tissue segmentation''': Atlas-based automatic tissue segmentation via an Expectation-Maximization scheme 
* '''Subcortical Structures''': Left and Right manual segmentation of amygdala, caudate, hippocampus, lateral ventricles, pallidus, putamen

=== Data Contact ===

If you have any questions about the data, please contact