Hi - thanks for sending the data. The first thing to note is that if
you look at the histogram of tstat1, there is a strong negative
global shift - i.e. globally you have negative correlation with the
covariate. If this is the patients-normals shift then this suggests
that you should be looking for significance in the tstat2 contrast
not 1?
There is nothing of significance in maxc_tstat1 - the max value is
0.34 i.e. p<0.66.
Cheers, Steve.
On 14 Aug 2007, at 15:13, Thomas Doering wrote:
> Hi Steve,
>
> i made an upload of some of my results (thomas_result.zip - ref.nr.
> 263566). There is also a png image of the slice(slice 63) i am
> specially interested. In this study i expect some significant
> diference in FA values between controls and patients in the Frontal
> Lobe. But after looking to the results of TBSS i am not sure
> anymore, if there is really a change in FA...The significant areas
> seems to bee to small that i could conclude something. What do you
> mean?
>
> Thanks for your help ,
> Thomas
>
> ----- Original Message ----- From: "Steve Smith"
> <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, August 14, 2007 2:56 AM
> Subject: Re: [FSL] TBSS -Results
>
>
> Hi - sure, we can take a quick look - upload to the normal place.
> Cheers.
>
>
> On 13 Aug 2007, at 13:19, Thomas Doering wrote:
>
>> Dear FSL Users,
>>
>> I recently run the TBSS script on the dtiFit' ed data to make a
>> simple two group statistical comparision. I had no problems to
>> run the script, just now when analyzing the statistical maps.
>> There are some regions in the tracts, they appear significantly
>> different from the rest, but i wonder if those regions appears
>> because of perhaps misregistration problems, warping problems etc.
>> It would be very nice if somebody could take a look on my results
>> and give me some clue.
>> And If so, how i could pass the images to you? ( i unfortunatly
>> still donīt have an own server where it would be possible to make
>> the download...)
>>
>> Thanks for help,
>> Thomas
>>
>
>
> ----------------------------------------------------------------------
> -- ---
> Stephen M. Smith, Professor of Biomedical Engineering
> Associate Director, Oxford University FMRIB Centre
>
> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
> ----------------------------------------------------------------------
> -- ---
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---
Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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