Developments of ultrasonic transducer with two resonance frequencies and innovative transmit-receive method for small-scale ultrasonic diagnostic equipment

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13995
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Measurement engineering
• Research Institution: University of Toyama
• Principal Investigator: HASEGAWA Hideyuki 富山大学, 大学院理工学研究部(工学), 教授 (00344698)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 超音波 / 小型診断装置 / 超音波振動子

Outline of Final Research Achievements

The performance of ultrasonic diagnostic equipment is rapidly improving owing to recent innovative developments of ultrasound-related devices. On the other hand, portable equipment is demanded for remote or emergency medical care. A current portable ultrasound system equips only one ultrasonic probe for portability. Therefore, it is necessary to use low-frequency ultrasound to image both superficial and deep organs using a single ultrasonic probe. However, low-frequency ultrasound is not preferable for imaging of superficial organs. In this study, an ultrasonic transducer, which oscillated at two frequencies (fundamental and harmonic), was developed. Also, ultrasound imaging using the developed ultrasonic transducer was conducted.

Free Research Field

医用超音波工学