Abstract
Techniques in bone densitometry have made remarkable progress in the past quarter-century and are now widely used in the daily practice of osteoporosis. Since the skeletal site and the method of measurement differ among the type of equipments, several types are adopted to suit the situation of each medical institute. Central DXA is used to provide a thorough examination of osteoporosis in large hospitals, whereas in general clinics the radial DXA or radiographic photodensitometry of metacarpus is mainly used. Quantitative ultrasound of calcaneus is mostly used for screening osteoporosis. DXA is also going to be applied to vertebral fracture assessment, hip structural analysis and micro-architectural analysis of vertebral trabecular bone.
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