A maternal uncle of mine recently retired from a position as a radiochemist at Turku university hospital. Until that time, the only PET centre in Finland was in Turku. Nowadays, there is another one in Kuopio about 400 km to the northeast of Turku. When my family and I were visiting them a couple of years ago, my uncle gave me a tour of the entire system he and his colleagues had built. It began from the cyclotron and ended to the imaging device used to detect the radioactive markers in the blood of the patient. He still continues to do some consulting both in Finland and abroad.
That's cool sounding. We don't have a PET scan facility on my job but they rent one occasionally. I would some times see a very big PET trailer outside. I'm think most of their patients are cancer patients.
Not only do they have a PET scan facility but a cyclotron. There probably is one in Baltimore or somewhere within a few hundred miles. Some of the isotopes have such a short half-life that they had to be transported to regional hospitals by plane. It helps a lot that another cyclotron was built in Kuopio 400 km away from Turku.