Patent ID: 11191507

Abstract:
Provided are: a device (1) and a system (100) for quantitatively calculating bone density by using an X-ray image of a bone pail, in particular, an alveolar bone; and an imaging assisting tool (4) for accurately and easily performing X-ray imaging of an alveolar bone. This bone density measurement device (1) comprises: an image display unit (101) for displaying X-ray images for an imaged bone part and a reference body on the same screen; a reference body density measurement unit (103) for measuring the density of the displayed X-ray image for the reference body; a bone part density measurement unit (105) for measuring the density of the displayed X-ray image for the bone part; and a bone density calculation unit (106) for calculating the hone density of the bone part by comparing the density of the X-ray image for the bone part with the density of the X-ray image for the reference body.