Non-invasive testing method for bone mass density with ultrasonic guided modes

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420002
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Hirosaki University
• Principal Investigator: SAITO Hiroyuki 弘前大学, 理工学研究科, 准教授 (70264091)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 骨密度 / ガイド波 / 脛骨 / 多孔質ロッド / アレイ信号処理

Outline of Final Research Achievements

This study was carried out to develop the new determination testing technique for bone mass density with the ultrasonic guided modes. The content is as follows; (1) the guided modes, which propagate the imitated tibia in the longitudinal direction and can be used for the density testing, were identified through theoretical analysis, numerical simulations, and experiment. (2) Based on the super-resolution beam foaming method for the array signal-processing, the algorithms which estimate the dispersive phase velocity of guided modes precisely were developed. (3) In analyzing the guided wave experiment data using a linear porous theory, the adaptive range and problems of the presented method were clearly shown, confirming the performance of an array signal-processing method and the consistency with the theoretical-analysis results.

Free Research Field

機械工学