Abdominal cross sectional elastic composition imaging through body surface perimeter acoustic tomographic measurement

2015 Fiscal Year Final Research Report

• Project/Area Number: 25330334
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Life / Health / Medical informatics
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: YAMADA AKIRA 東京農工大学, 大学院工学研究院, 教授 (20159213)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 音波トモグラフィ / 超音波内臓脂肪検査 / 腹部断面弾性組成映像 / 超音波CT / 超音波医用画像診断

Outline of Final Research Achievements

In the present study, investigations were made for the realization of the abdominal cross sectional elastic property tomographic imaging based on the observations of ultrasound time of flight data around human abdominal body surface. That is to say, visceral fat and abdominal muscle distribution can be visualized from the reconstructed abdominal cross sectional sound speed image. For that purpose, a real-time body surface contour detection and automatic tracking mechanism were introduced through the laser distance sensing from three different directions. The actuators were controlled to move to the exact position with 0.1mm positioning accuracy regardless of the body motion in the middle of the measurement. Finally, investigations were made regarding the deteriorations caused by the intestinal gas or transmission through the spine. As a result, validity of the present abdominal sectional elastic composition imaging method was demonstrated.

Free Research Field

計測工学