Manner and the system of x-ray photograph analyzing the bone by the computer

摘要

(57) Abstract When the bone quantity is measured manner and the system by the computer in order, bone structure when it does not measure and risk of future fracture the x-ray photograph to analyze. Although the tonnage of risk of bone structure and future fracture is measured, the texture analysis which is used is included in this technology. The texture analysis of bone structure, you displayed with the angular dependancy of the RMS fluctuation for example in the area of interest of ossein and 1st moment of the power spectrum of ROI, directivity information is installed. The system includes, in order to obtain both of the bone quantity and bone structure in the inspection of 1 times, use of duplex energy image pickup. Especially, it is applied to the analysis of the field of small cylinder internal on the former vertebral x-ray photograph. The new feature where power spectrum of bone structure to property it converts this technology, it makes the extraction of the directivity feature which three-dimensional distribution and thickness of the bone small cylinder to property is converted possible is included. Next, in order to obtain the probability of future fracture, using the artificial nerve net, it synthesizes these features. In addition, using duplex energy image pickup modulo, 1 times low you obtain the measurable quantity of both of the bone quantity and bone structure in dose x-ray photograph inspection, manner and the system which go desirably therefore the system the screening (bone coarsely for of probability of mustache symptom and future fracture and) do are shown.