I have acquired 100 volumes in resting fMRI data in my subjects. So I have to delete 2 or 3 or 5 volumes. If I will consider all the volumes, then is it any problem in analysis because I have 100 volumes only.
Hello,
The time for stabilization should be more than 3 seconds, so number of scans to delete (dummy scans) id depend on TR. If your TR more than 3 sec you can delete only one volume, if 2 sec - 2 volumes.
I took this recommendation here https://users.fmrib.ox.ac.uk/~robson/internal/Dummy_scan_info.htm
Good luck!
Hi, the time to stabilization, as Roza sad, it is around 2 secs, but you should to consider also the volunteer "stabilization".
But, first of all, check if the dummy scans are not already included into your protocol, and automatically deleted by the console (ours Achieva 3T have this feature).
Best,
Hi
I have tried in both ways. During pre-processing, I have deleted 2 volumes at one time and at 2nd time, I have taken all the volumes in the same subject. There is not a very big difference with or without deleting volumes.
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