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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Dear Donald,<br>
<br>
I'm new using MRtrix. Therefore, I'm following the online manual as close as possible in order to understand the whole process to get reliable results.<br>
While reading the manual I noticed that my CSD response image (attached in this mail) looks slightly different compared to the on-line image of the manual. The axial plane is larger than the z-axis as expected, yet in the centre of the response function rendering
is folded slightly outwards (see images). <br>
So far, I haven't figure out what is the cause of this and if it would affect my results?<br>
Thanks!<br>
Regards,<br>
<br>
Javier Urriola Y.<br>
<br>
<br>
Code used:<br>
$ <span style="font-weight: bold;">mrconvert</span> img_dwi.nii -coord 3 0 - | threshold - - | median3D - - | median3D - img_dwi_mask.mif<br>
<br>
$ <span style="font-weight: bold;">dwi2tensor</span> img_dwi.nii -grad z_iy_xb_dir.txt - | mrmult - img_mask.mif img_dtmask.mif<br>
<br>
$ <span style="font-weight: bold;">tensor2FA</span> img_dtmask.mif - | mrmult - img_mask.mif img_mask_fa.mif<br>
<br>
$ <span style="font-weight: bold;">tensor2vector</span> img_dtmask.mif - | mrmult - img_mask_fa.mif img_mask_ev.mif<br>
<br>
<span style="font-weight: bold;">erode</span> img_mask.mif - | erode - - | mrmult img_mask_fa.mif - - | threshold - -abs 0.7 img_mask_sf.mif<br>
<br>
<span style="font-weight: bold;">estimate_response</span> img_dwi.nii img_mask_sf.mif -lmax 6 img_mask_response.txt -grad z_iy_xb_dir.txt<br>
<br>
<span style="font-weight: bold;">disp_profile</span> -response img_mask_response.txt<br>
<br>
<br>
<br>
<br>
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