[Mristudio-users] ROI uploading and viewing in DTI Studio

[susumu]

Hi Elizabeth,

I think your procedure is right, but the BinaryMap file may not be right.

1) Please do some fiber tracking using DtiStudio. Draw some manual ROIs and
see if fibers are correctly reconstructed.
2) If you see fibers are reconstructable, then try to save the ROIs you drew
using the "BinaryMap" format. Open the text file and study inside. For each
ROI file, there should be 3 lines for "Operation", "Fiber color", and
"colormode". At the bottom of the text file, there are explanations about
these fields. For example, "Operation" field says "0=OR, 1=AND".
3) In your example, you specified Operation: 1 for the both ROIs. If you
have two "AND" ROIs, you do not get any fibers. The first one has to be "OR"
and the second one "AND" to combine two ROIs.

-----Original Message-----
From: mristudio-users-bounces at mristudio.org
[mailto:mristudio-users-bounces at mristudio.org] On Behalf Of Elizabeth Finger
Sent: Wednesday, September 10, 2008 2:13 PM
To: mristudio-users at mristudio.org
Subject: [Mristudio-users] ROI uploading and viewing in DTI Studio

Hello-

I have been following the proior posts on this topic but cannot seem to open
up  in DTI studio the ROI's saved as a binary map which I created in ROI
Editor.  I have attached the binary map file that I created in ROI Editor
and then edited to include the Operation: 1 to each binary file to signify
AND.  Then in DTI-Studio- Fibertracking, I load my FA map and eigenvector_0
and complete the fiber tracking.  When I then in the fiber tab under ROI
Operation click on load, binary map, and select my file, nothing (no ROIs
nor fibers) appear on the screen, and no ROI statistics are available.  I
have tried this with several subjects and with several different ROIs.
Perhaps there is a step I have missed?

Thank you,
Elizabeth Finger 
 
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