How to check bone density

I. Bone Density Examination Methods: 1. Single Photon Absorptiometry: This method uses photons emitted by radioactive isotopes to scan the forearm and measure bone mineral content in the limb bones. 2. Dual-Energy X-ray Absorptiometry: Using an X-ray tube, this technique analyzes bone mineral content based on information obtained from low- and high-energy photon peaks passing through the body. 3. Quantitative CT: This method measures bone mineral density at specific sites using computed tomography imaging technology. 4. Ultrasound Measurement: This technique assesses bone mineral content based on the velocity of sound conduction and amplitude attenuation. II. Examination Precautions: 1. Schedule an appointment in advance: Based on individual circumstances and physician recommendations, select an examination method and book an appointment ahead of time. 2. Preparation before the examination: On the day before the examination, maintain a light diet and avoid foods high in calcium and fat. 3. Inform the physician: Before the examination, inform the physician about your medical history and any medications you are currently taking. Please follow your physician's recommendations to choose the appropriate examination method, and maintain a positive attitude and cooperation.