Development of High-Ouput Ultrasonic Probe for Ultrafast Imaging

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289123
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: University of Toyama (2015-2016); Tohoku University (2014)
• Principal Investigator: Hasegawa Hideyuki 富山大学, 大学院理工学研究部(工学), 教授 (00344698)
• Co-Investigator(Kenkyū-buntansha): 西條 芳文 東北大学, その他の研究科, 教授 (00292277) ; 金井 浩 東北大学, 工学(系)研究科(研究院), 教授 (10185895) ; 近藤 祐司 東北大学, 工学(系)研究科(研究院), 教授 (20534431)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 超音波 / 高速イメージング / 高出力プローブ

Outline of Final Research Achievements

Functional ultrasound imaging is valuable for diagnosis of the circulatory system. Measurement of the tissue dynamics is necessary for functional ultrasound imaging. We have tried to improve the temporal resolution, which is one of the merits of ultrasonography, for accurate measurement of the tissue dynamics. In the present study, an ultrasonic transducer array, to which high input voltage can be applied, was developed for detection of ultrasonic echoes from very weak scatterers, such as blood cells, by increasing the intensity of emitted ultrasound. Also, a multi-channel system for ultrasonic pulse-echo measurement was developed so that high voltages can be applied to the transducer array. Furthermore, we have developed methods for high-contrast ultrasonic imaging and succeeded to visualize weak echoes from blood cells.

Free Research Field

医用超音波工学