The highest density of PET scanners is 5.6 per million populationin Denmark, followed by the Netherlands (4.8) and Japan (3.7). Italy, Japan, Korea and the United States have above-average densities for all these devices. In addition, Greece has high densities of diagnostic equipment except for PET scanners, and Switzerland also has a relatively large volume of diagnostic equipment, although data are not available for MRI scanners. On the other hand, the central and eastern European countries (i.e. the Czech Republic, Hungary, Poland, the Slovak Republic and Slovenia) and Turkey have low densities of diagnostic equipment.