[Mristudio-users] Importing analyze format ROIs to dtistudio

[Jerry Yeou-Wei Chen]

Hi Naama,

Here's a method I used that worked for me (roughly what Susumu recommended
below)
I had created masks in FSL that I wanted to use in DTIStudio to seed tracts,
and here's what worked:

Here are steps in FSL
•Use fslview to draw mask
•Convert to 8-bit
> fslmaths input -add 0 output -odt char
•Convert to Analyze
> fslchfiletype ANALYZE output

Here are steps in DTIstudio
•Load as Analyze in DTIstudio (MRI View3D)‏
•Save as raw
•Load Fiber Tracking
•Load ROI as binary image (raw)‏

Good luck!
- Jerry

On Thu, Mar 5, 2009 at 1:58 PM, susumu <susumu at mri.jhu.edu> wrote:

> Hi Naama,
>
> I don't think you can directly import Analyze ROI to DtiStudio.
> However, Analyze consists of *.hdr and *.img. The *.img file is a raw data.
> If the *.img is a binary data, I believe that you can load it as an ROI
> through the ROI/ "raw" format.
>
> One thing you have to know is that the default Analyze format follows
> Neurology convention. Because DtiStudio follows Radiology convention,
> reaing
> the *.img directly as a raw data may lead to upside-down location.
>
> I would recommend you to read your Analyze ROI file as Analyze image by
> DtiStudio or RoiEditor first (maybe RoiEditor is better). Then save the
> data
> as binary raw data or "binary map" format. I believe the "binary map"
> format
> is one of the most powerful format to communicate with DtiStudio fiber
> tracking function.
>
> The easiest way to learn the "binary map" format is to draw ROIs for fiber
> tracking in DtiStudio and save the ROI as the "binary map" format. You will
> find binary ROI files and one text file, which is a kind of a header file.
> You can open and read the text file to understand the file format.
>
> Please let us know if you can follow my suggestion.
>
> Susumu
>
> -----Original Message-----
> From: mristudio-users-bounces at mristudio.org
> [mailto:mristudio-users-bounces at mristudio.org] On Behalf Of Naama
> Barnea-Goraly
> Sent: Thursday, March 05, 2009 11:51 AM
> To: Landmarker Questions/Support DTI Studio ROI Editor
> Subject: [Mristudio-users] Importing analyze format ROIs to dtistudio
>
>
> This was brought up in the past but I cannot find a clear answer in
> the archives - Is there an easy way to import analyze format ROIs into
> dtistudio?
>
> Thanks,
>
> Naama
>
>
>
> Naama Barnea-Goraly M.D.
> Instructor
> Center for Interdisciplinary Brain Sciences Research
> Stanford University Division of Child and Adolescent Psychiatry
> 401 Quarry Rd. MC 5795
> Stanford University School of Medicine
> Stanford, CA  94305-5795
> Phone: (650) 736-1874, fax: (650) 724-4794
>
>
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