BMD

這是什麼

BMD estimates how much mineral is present in a measured bone area. DXA reports often use BMD to calculate T-scores or Z-scores.^[1,2]

為什麼重要

Lower BMD can be associated with higher fracture risk, but bone quality, falls, disease context, and prior fractures also matter.^[1]

它會影響哪些判斷

• A low BMD result can support low bone mass or osteoporosis classification in the right adult population.^[1,3]
• High density is not automatically strong bone; osteopetrosis is one counterexample.^[4]

解讀陷阱

• Do not read BMD without age, sex, skeletal site, instrument, fracture history, and clinical context.^[3]

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