Those machines good domestic production can not, are imported. The price is very expensive. According to its cost of use, life cycle discounted cost per use, and then add a reasonable profit to arrive at the price.
Different levels of hospitals have different equipment for the same examination program will have different prices, that is because the machine's service life is not the same, the clarity is not the same. Many low-grade hospitals are buying outdated machines that have been phased out by other high-grade hospitals, so low-grade hospitals charge less for the tests.