2010 Fiscal Year Final Research Report
Multiple frequencies ultrasonic imaging for alleviation of exposure risk
| Project/Area Number |
20300181
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Shonan Institute of Technology |
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Principal Investigator |
AKIYAMA Iwaki Shonan Institute of Technology, 工学部, 教授 (80192912)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Yoshiaki 同志社大学, 生命医科学部, 教授 (60148377)
NAKAMURA Kentaro 東京工業大学, 精密工学研究所, 教授 (20242315)
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| Co-Investigator(Renkei-kenkyūsha) |
TANIGUCHI Nobuyuki 自治医科大学, 医学部, 教授 (10245053)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 血流計測 / 造影剤 / 非線形振動 / スペックル / 造影剤 / 圧電振動子 / 広帯域 / クロスビーム方式 / 多共振特性 |
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| Research Abstract |
This study developed two types of multiple frequencies ultrasonic imaging for alleviation of ultrasound exposure risk of biological tissues. One is "crossed two-frequency beams contrast echo method", which measures distribution of low speed blood flow at the crossed area of two beams with different frequencies. The other is "multiple-frequency echo method", which forms multiple-frequency images using the broadband pulsed wave of multiple peak frequencies.
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[Presentation] Paris, France
Author(s)
Iwaki Akiyama, Dual-Frequency driving transducer for ultrasonic Echography, Acoustical Society of America, 20080704
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