Three-dimensional Ultrasound Imaging and Image Tracking for Long-time Monitoring of Portal Veins

2016 Fiscal Year Final Research Report

• Project/Area Number: 26282146
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Medical systems
• Research Institution: Kyoto University
• Principal Investigator: SUGIMOTO Naozo 京都大学, 医学(系)研究科(研究院), 教授 (20196752)
• Co-Investigator(Kenkyū-buntansha): 椎名 毅 京都大学, 医学(系)研究科(研究院), 教授 (40192603) ; 藤井 康友 京都大学, 医学(系)研究科(研究院), 教授 (00337338) ; 石津 浩一 京都大学, 医学(系)研究科(研究院), 准教授 (50314224) ; 上野 智弘 京都大学, 医学(系)研究科(研究院), 助教 (10379034)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 医用超音波システム / 3D超音波 / 長時間モニタリング / トラッキング

Outline of Final Research Achievements

We developed a new method by using three-dimensional(3D) ultrasound for long-time monitoring of portal veins. Long-time monitoring of portal vein by the 3D ultrasound must be performed by image tracking and registration because the portal vein is displaced during respiration in the ultrasound image. Firstly, by phantom experiments, we confirmed that the 3D ultrasound image had not degraded after 24 h of use and evaluated the performance of our image tracking method. After validating the method on the phantom, we monitored healthy subjects by our 3D ultrasound method. It was shown that about 1-h imaging of portal vein was possible, and that image tracking and registration of the subjects’ portal veins were correctly performed.

Free Research Field

医用画像情報学