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Dear all, I encounter this ventricle activation problem again. This is healthy 23 years old female. Are there any reasons and solutions? Thanks a lot. Best, Andy On Tue, Feb 18, 2014 at 1:53 AM, H. Nebl <[log in to unmask]> wrote: > Dear Andy, > > > make sure your subject does not show fast scan-to-scan motion (something > like >0.3 or >0.5 mm/TR), which might result in global intensity changes in > affected volumes. This might lead to artificial activations in or around > the ventricles. Just an idea :-) > > > > Best, > > Helmut > >