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Hi, SPM-ers, When I coreg a set of dynamic contrast enhanced images with lower resolution to a static image with higher resolution, I notice the resolution of the resulting dynamic images are artificially "up-graded" to the higher resolution. Is there a way to avoid that? Alternatively, 1) is there within SPM to reconstruct the lower resolution for the registered dynamic images? and 2) is there a way in SPM to reduce the resolution of the static image prior to coreg? Thanks a lot! Lu