I'm a little confused about
what you're asking. Perhaps if you could include a signature, describe your current situation, and why you are interested in getting scans done (i.e., what is the treatment decision you are trying to support).
How frequently you get a scan depends upon the decision you are trying to support. For example, if you are trying to determine whether it is worthwhile having another round of docetaxel, you'd have a bone scan to see if your bone mets responded to the first round.
Full body CT scans and PET/CT scans give quite a bit of radiation, so you only want to do them when you need them - they are not for information only. Bone scans alone don't give much radiation, but they are often combined with full body CTs which do. MRIs don't give any radiation at all. Of course, if you have multiple metastases, it hardly matters if you get some radiation -- the extra radiation won't reduce your survival.
Allen - not an MD
•PSA=7.3, prostate volume=55cc, 8/17 cores G6 5-35% involvement
•SBRT 9 yr onc. results
•SBRT 7 yr QOL results
•treated 10/2010 at age 57 at UCLA,PSA now: 0.2,no lasting urinary, rectal or sexual SEsmy PC blog