Hi Dr Andersson,
Thank you for your quick reply! These sound great.
I just have another quick question - I just found that topup is also updated in 6.0.4 - will it generate very close (or same) result compare to that in 6.0.3?
Thank you,
Chenying
On Tue, 18 Aug 2020 12:15:25 +0000, Jesper Andersson <[log in to unmask]> wrote:
>Dear Chenying,
>
>> I noticed that the eddy in new version (FSL 6.0.4) has great improvement in processing speed. I’m thinking about using 6.0.4 for my data but I already processed some subjects with FSL 6.0.3. So I’m wondering whether eddy in these two versions generate the same results?
>
>the speedups are mainly if you do slice-to-volume realignment and/or susceptibility-by-movement interaction, but for those cases the speed up is substantial.
>
>As part of our pre-release preparations we run eddy on five different data sets, aimed at highlighting/testing different aspects of eddy. Some of these data sets are simulated, so we know the ground truth, and some are not. In the previous case we compare the results to the "truth" and in the latter case to the results from an earlier version of eddy. eddy 6.0.4 passed all these tests, which does not mean the results are identical to truth/previous versions, but that they are within tight pre-defined limits for acceptable differences.
>
>I would personally be OK with mixing 6.0.3 and 6.0.4 eddy results. But if you want both belt and suspenders you might want to re-run the subjects you have already run with 6.0.4.
>
>Jesper
>
>>
>> Thank you so much for this update! It’s very helpful to me!
>>
>> Best,
>> Chenying
>>
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