Hello, I try to find a new tractography method for my PHD thesis.So, I need a phantom to find out whether the results of my new method are good or bad from other methods.When I've found Tractography Challenge data (Tractometer - ISMRM 2015 Tractography Challenge). Firstly, I want to say that the challenge and the data are excite me a lot.
| | | Tractometer - ISMRM 2015 Tractography C... | Secondly, I opened these data in MITK, preprocessed, calculated the diffusion tensor parameter and streamline deterministic tractography them.So far so good. Then, I try to open these data in MATLAB. But, I've encounter with a problem that I open *.nii.gz with "niftiread" command of MATLAB, I see the dwi data has 90x108x90 size.On the other hand, when I open the bvals and bvecs, I see there must be 1 non-diffusion and 32 diffusion image of data.So, I confused when I look another NIFTI formatted data. Because, they are in 4D (m x n x slice x non-dwi or dwi image number). Where is my fault? Is the data 3D or 4D? If these data is in 4D it may be MATLAB couldn't read the data correctly.Could you help me please? Sincerely... Suleyman TASKIN
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