How to write 3D-ezw code ?

I want to compress 3d medical image ,then transfer and reconfiguration 3d medical. First,I want to use wavedec3 in matlabR2011b to decompose the 3d image ,then ,I want use 3d-ezw to encode(decode) the data by wavedec3 .But ,now I don't know how to write 3d-ezw code ,so , I help you can direction me ,thinks a lot!