When a line has been established on a bone density image in a bone densitometer, the corresponding profile is displayed as a one-dimensional bone density distribution. The position of a characteristic element (characteristic point or characteristic zone) is specified by analyzing the profile. This position is displayed as a one-dimensional position marker in the profile, and is displayed as a two-dimensional position marker on the bone density image. When the line is moved, the profile is updated in real time and the positions of the one-dimensional marker and two-dimensional marker are simultaneously updated in real time.一種骨密度測定裝置,於骨密度影像上設定線條時,對應之輪廓係呈一次元骨密度分佈被顯示。藉由輪廓之分析使特徵要素(特徵點或特徵區間)之位置被鑑定。其位置於輪廓上係以一次元位置標記被顯示,於骨密度影像上以二次元位置標記被顯示。使上述線條移動時,輪廓係被即時更新,同時,一次元標記及二次元標記之位置被即時更新。10‧‧‧測定部12‧‧‧演算部14‧‧‧床台16‧‧‧受測者18‧‧‧X射線產生單元20‧‧‧X射線管21‧‧‧高電壓源22‧‧‧X射線檢測單元23‧‧‧X射線束24‧‧‧骨密度影像形成部26‧‧‧顯示處理部28‧‧‧顯示部30‧‧‧輸入部32‧‧‧輪廓作成部34‧‧‧輪廓分析部36‧‧‧第一圖形影像形成部38‧‧‧第二圖形影像形成部
