[Mristudio-users] Siemens Mosaic

[support at mristudio.org]

hi,

please make sure all image volumes were re-constructed correctly before you do
tensor calcualtion and fiber tracking.

I noticed that the DTI_2 has only 1 or 2 slices, but DTI_1 has more (you can
verify this from 2D image in coronal view).

after the images loaded in, please check the all image volumes (using image list
of the "image" tab; or clicking the first button of the "DtiMap" button);

also, please check the gradient table; the number of gradients shoule match with
the number of images.


regards,

hangyi




> Hello,
> I'm having trouble Fiber-tracking using Siemens Mosaic data.  I can load my 74
> dicoms in MRI View3d.  Then in DTI Mapping, I change the "Slices to be
> Processed" to All Slices.  I then choose " Add Folder" and look at all files as
> my files don't have .dcm extension.  It loads well.  I've included a JPEG
> (DTI_1) at this stage.
>
> Here is my problem...if I go to the DtiMap tab, and press Tensor, Color Map,
> etc. calculation then it will iterate 14 times, for about 5 seconds, giving me
> an odd result, as shown in the second JPEG (DTI_2).  Looking at the FA, and the
> first 2 eigenvectors, it seems that I haven't gotten many images, and they are
> very blurry(DTI_3).
>
> Lastly, when I press on the Fiber Tracking button, it will open a new tab
> immediately...and I will be unable to visualize any fibers.  I hope that you can
> provide some guidance.  Thank you immensely for any help.  Please take care.
>
> George Hana
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