Hi Jun
You said earlier that parameters were the same except for number of subjects - are the two results of different subjects then?
Nonetheless, could you show the reg log files so that I can see what was run.
Thanks
Danny Kim
________________________________________
From: FSL - FMRIB's Software Library [[log in to unmask]] On Behalf Of Jun Miyata [[log in to unmask]]
Sent: Monday, February 15, 2016 7:38 PM
To: [log in to unmask]
Subject: Re: [FSL] highres2standard registration works strangely
Dear Danny,
Thank you very much for your interest. I attached the enlarged versions. In the Overlay_color file, the skewed result (gray scale) is displayed on normal result (red-yellow). These are results of the same subject, with the same melodic parameters.
The FSL version is 5.0.5, melodic 3.1.4 on OSX 10.9.5. I confirmed the same issue occurs on FSL 5.0.9 on OSX 10.10.
Best regards,
Jun
Hard to tell from small snapshots.. do you have a better resolution snaps?
Danny Kim
On 2016-02-15, at 5:03 PM, Jun Miyata wrote:
Dear FSL experts,
I attached the PNG files. The highres2standard_OK and highres2standard_strange files show differences in frontal and parietal convexities, though they may be a bit difficult to distinguish. The overlay file shows strange result (gray scale) overlaid on normal result (red). This would be easier to see the difference.
Best regards,
Jun
2016/02/15 13:52、Jun Miyata <[log in to unmask]> のメール:
Dear FSL experts,
I have run Melodic group ICA for the same rsfMRI data twice, but I had different results for highres2standard registration. For the 1st trial it worked well, but for the 2nd the final highres2standard.nii.gz was skewed like diamond shape.
I performed ICA from Melodic GUI. The parameters were the same except for the number of subjects. I confirmed that highres2standard_linear.nii.gz, highres2standard.mat, and standard2highres.mat files are identical between two trials, whereas highres2standard_warp.nii.gz and highres2standard.nii.gz are different. Thus I think the problem is in nonlinear registration.
I appreciate if anyone could explain the reason. I would like to attach the files but it exceed the maximum size.
Thanks in advance,
Jun
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