Yes, they are different but when I had my PET scan, it was a CT/PET.
They have the CT and PET images on their own and then they merge them together. Pretty neat looking.
Note: If anyone gets their's on CD before getting the report, don't freak out when your kidneys, bladder, and brain light up like a Christmas tree. The radioactive agent leaves the body through the urine so it's higher concentration there. The brain also has activity that causes it to show up but none of those were relevent. It does freak you out a bit though if you don't know that ahead of time.
Good news Lee!
I saw my urology consultant this morning. Unfortunately he told me that I cannot have a PET scan as they "feel the risk of such a high radiation dose is more damaging than finding out if there is any cancer left". I take that to mean that they are fairly certain that I am ok so better not expose me to something I do not need. He will, however, be arranging a full-body CT scan. (Not such a high blast of radiation!)
I do have another UTI - felt lousy last night- so am back on antibiotics! Ho Hum!