See FIRST notes on segmentation: https://docs.google.com/spreadsheets/d/1B7eN9p0R3UfOGkn2VHIzXQaJsivxyJlmh0Camb8bzag/edit?usp=sharing.
Citing
Cite the IXI website.
DTI
There are 17 compressed nifti images. These consist of a b0 and 15 DWI images, and an average of the DWI. This was determined by Paul 2016-08-03. (The earlier DTI was messed up - the second DTI was set to be a b0. so everything was wrong wrt bvals, bvecs.)
Quality Checking
DTI Problems
386 IXI subjects include DTI scans.
Registration issues (from FA, 2016-07-07): 11237, 11419, 11498, 11550, 11550
Fixed 2016-07-10 with rigid-body tweak: 11094, 11279, 11312, 11324, 11353, 11376, 11377, 11380, 11399, 11403, 11453, 11480, 11505, 11562, 11614
Slightly cut off: 11324,
DTI tensor calculation errors and artifacts
| Subject | Error | Note/Example |
|---|---|---|
| 11411 | FA banding |
|
| 11534 | bad FA |
|
| IXI11535 | bad FA |
|
| IXI11593 | bad FA |
|
| IXI11630 | bad FA |
|
| IXI11648 | bad FA |
|
| IXI11651 | Bad FA |
|
