Can I use cover art dimensions as a column heading?

I'd like to be able to see my cover art dimensions (i.e. 500x500) in a column, is this possible? I can see this info beside the cover art on the left, but it doesn't seem to be available in any of the column choice when I go to customize. It seems odd, too, because I can choose cover art mime type and cover art size...

Cover Dimensions - another approach

DD.20090320.0213.CET