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Thx! Moran On Tue, Aug 21, 2012 at 8:59 AM, Mark Jenkinson <[log in to unmask]> wrote: > Hi, > > We don't currently have a DSC curve-fitting and area calculation in FSL. > You can calculate the raw sum over all intensities in a time-series (i.e. > area) by doing: > fslmaths inputimage -sub baseline -Tmean -mul `fslval inputimage dim4` > outputimage > where baseline is an image with a baseline value in each voxel (you could > approximate this with: > fslmaths inputimage -Tmin baseline > if the images are not too noisy) and the outputimage will contain the > "area" value in each voxel. > Also note that doesn't include any fitting. > If you have a fitted curve (not the parameters, but a reconstructed > time-series) then you can use the same code to get your answer. > > All the best, > Mark > > > > > On 19 Aug 2012, at 09:24, Moran Artzi <[log in to unmask]> wrote: > > > Dear experts, > > > > I have 4D DSC perfusion (time series) image. I want to calculate the > "area under the curve" for each voxel i.e. - the amount of signal change > over time . > > Is it possible using one of FSL utilities? > > > > Thanks a lot > > Moran > > >