The purpose of the invention is to display bone mineral density and the measured values on which same is based in a form that is suitable for bone diagnoses. The bone mineral density-measuring device acquires bone mineral distribution data wherein the three-dimensional distribution of bone minerals is projected onto a plane based on X-rays passing through the subject. The bone mineral density-measuring device determines bone mineral content, bone area and bone mineral density based on the bone mineral distribution data and displays the determined bone mineral content, bone area and bone mineral density on a display. Bones that are subjects for diagnosis are, for example, the second, third and fourth lumbar vertebrae. On the display, an image showing the bone mineral densities (D2 - D4), bone areas (S2 - S4) and the bone mineral contents (C2 - C4) of the second - fourth lumbar vertebrae on the vertical axis and the examination times on the horizontal axis is displayed.本發明係以適合骨診斷的態樣來顯示骨密度及以骨密度為基礎的測量值為目的。骨密度測量裝置係基於透過受測者的X射線,而取得將骨鹽之三次元空間分佈投影於平面的骨鹽分佈資料。骨密度測量裝置係基於骨鹽分佈資料求得骨鹽量、骨面積及骨密度,並於顯示器顯示所求得的骨鹽量、骨面積及骨密度。診斷之對象骨係例如為腰椎之第二椎骨、第三椎骨及第四椎骨。顯示器顯示第二至第四椎骨之骨密度D2~D4、骨面積S2~S4及骨鹽量C2~C4的影像,骨密度、股面積及骨鹽量為縱軸,檢查時點為横軸。10‧‧‧X射線發生部12‧‧‧X射線檢測部14‧‧‧檢測面16‧‧‧受測者18‧‧‧攝影台20‧‧‧診斷空間22‧‧‧資料處理器24‧‧‧記憶部26‧‧‧顯示器28‧‧‧系統控制器30‧‧‧操作部32‧‧‧骨鹽分佈資料生成部34‧‧‧部分分佈資料擷取部36‧‧‧測量值演算部38‧‧‧影像生成部
