[Mristudio-users] ROI maps for DTIstudio

[Xin Li]

Hi Dorian,

After you save your rois in ROIEditor as binary maps, please add lines for the operation, fiber color and color mode to the map file and try to load these binary map files into DtiStudio again.


Xin



----- Original Message -----
From: "Dorian P." <alb.net at gmail.com>
Date: Wednesday, November 28, 2012 11:48 am
Subject: [Mristudio-users] ROI maps for DTIstudio
To: mristudio-users at mristudio.org


> Hi everybody and thank you for providing the MRIstudio course this week.
>  
>  I have a problem with ROIs. My target is to create two ROIs with an "AND"
>  operation in fiber tracking (need to see fibers that pas from both). 
> The
>  two ROIs will be taken from SPM.
>  
>  What I did is create the first ROI and reslice it in SPM to the dimensions
>  of the colormap image. I imported the map in ROIeditor and it displays
>  correctly (byte image). Then I created a ROI based on thresholding values.
>  Saved the ROI as binary mask and expected to get the ".dat" and ".map"
>  files.
>  
>  1. The binary maps produced by ROIeditor do not have a ".map" file. I 
> find
>  only two ".dat" files. One of them is the map file and I can edit it 
> in
>  Wordpad. I renamed this file to ".map" to open it in DTIstudio.
>  
>  2. DTIstudio does not open the ".map" file anyway, it shows nothing 
> on the
>  screen. However, when I open the raw ".dat" file the fibers are finally
>  shown. Still, this doesn't resolve my problem as I need two rois with 
> an
>  AND operation.
>  
>  3. I tried saving binary maps both from ROIeditor and DTIstudio but
>  DTIstudio can't open any of them. Beside, DTIstudio doesn't produce the
>  same files as ROIeditor. The extensions are different and rois from
>  DTIstudio have lines for the operation while rois from ROIeditor 
> don't. I
>  tried adding those lines to the ".map" file of ROIeditor, without success.
>  
>  Can you give me some hint how to perform my task.
>  
>  Software versions:
>  Roieditor v1.5 - 64bit
>  DTIstudio v3.03 Sep 2010 - 64bit
>  
>  Thank you. 
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