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dMRI Data Acquisitions

Submitted by kingwai on
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General discussion

Hi,

Base on your "Practical Recommendations for dMRI Data Acquisitions"

https://tortoise.nibib.nih.gov/tortoise/data_acquisition

I'm wondering is our data suitable for using tortoise.

In particularly, our T2 scan has very thick slices(3.9).  Is this a problem?

Here are our data specs:

scan          xdim  ydim  zdim tdim       dx              dy               dz         dt               # of b0    bvals
T1              176   256   256   -         1.000000   0.976562   0.976562   -
T2              640   640   34     -         0.359375   0.359375   3.900000   -
noddi-ap    128   128   64    107     2.000000   2.000000   2.000000   4.284000       8        1200,2400
noddi-pa    128   128   64    107     2.000000   2.000000   2.000000   4.284000       8        1200,2400

Thank you so much for your help.

King-Wai

 

Submitted by irfanogl on Mon, 11/28/2022 - 18:50

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Hello,

 

The best thing is to try. I think you should still be able to use it but the EPI distortion correction performance may not be optimal.

If this is human brain data, and if I had your dataset, what I would do is to convert the T1W image into a T2W image using SynB0-DISCO (https://github.com/MASILab/Synb0-DISCO)  and then use that newly synthesized T2W image in TORTOISE.

Hope this helps.