The bone densitometer of x-ray is more accurate and can be used for diagnosis, but it is more expensive, usually more than hundreds of thousands of dollars.
Ultrasonic bone densitometer is usually below 200,000 yuan, can only be used for physical examination and preliminary inspection, it is divided into two categories of hand and foot measurement, each category is divided into hand and child type, each type is divided into imported and domestic, so there are too many varieties, can not be listed one by one.
To ultrasonic bone densitometer, for example, imported by the United States GE, Japan Furuno, Israel Guangyang, South Korea BMTech, South Korea OSTEOSYS, domestic Hebei Hongyang, Shenzhen Kang Rongxin.