DICOM image stitching

Hello Andreas, I am wondering if KPACS will ever contain some sort of image stitching option. We are filmless to the point of (14x51) scoliosis films. We have heard of people putting their 14x17 cr plates into the scoliosis cassette and then running them through the CR Digitizer creating 3 images...then stitching them together into one. I know that many CR companies sell a stitching package, but they are rich enough... some sort of free option would be great. Other wise, Do you know of any other free dicom stitching software? What are other people doing to get digittal scoliosis and long-leg films????