It depends....many centers are now overlaying the two CT/PET.....some insurances will not pay for the PET....many centers do not have the PET ..but things are changing.
Go here to read about PET interactive.snm.org/index.cfm?PageID=972
In reading the forum, I see discussion of pet scan; I am baffled are CT scans of organs, prior to RC, not sufficient for clarification of ca involvement.?