An Ultrasonic Seminiferous Tubule Imaging beyond Wavelength Limit
Project/Area Number |
25670689
|
Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Urology
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Research Institution | University of Hyogo |
Principal Investigator |
HATA YUTAKA 兵庫県立大学, シミュレーション学研究科, 教授 (20218473)
|
Research Collaborator |
ISHIKAWA Tomomoto
|
Project Period (FY) |
2013-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
Keywords | 男性不妊症 / 超音波検査 / 波長限界 / 周波数解析 / ファジィ論理 / フーリエ変換 / ウエブレット変換 / 医用計測システム / 超音波装置 / 精細管 / 画像処理 / 直径計測 / 信号処理 / アンドロロジー / 医療画像 / 超音波 / 波形限界 / 管径同定 |
Outline of Final Research Achievements |
The possibility that thick seminiferous tubules (300μm in diameter) include the sperm is higher than that of thin seminiferous tubules (100μm in diameter). Ultrasonic measurements usually employ Pulse-Echo method. The method calculates an object depth by detecting a received wave time. This spatial resolution of the method is determined by a wavelength of ultrasonic. (1) Our study group proposed a characteristic between ultrasonic reflection wave frequency and line thickness. Our research indicated that a frequency of thick lines (three soft matters) is lower than it of a thin line. This relation does not hold for metals. (2) An ultrasonic imaging technique is provided for seminiferous tubules in a testicle. By using the above characteristic, we make a cross-section image that indicates a distribution of seminiferous tubules beyond the wavelength limit. This image clearly locates the thick or thin lines.
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Report
(3 results)
Research Products
(6 results)