Presentation 2010-06-24
US2010-16 Tissue Harmonic Imaging with Chirp Signal Based on Split and Merge Strategy
Masayuki TANABE, Takuya YAMAMURA, Kan OKUBO, Norio TAGAWA,
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Abstract(in English) In this study, we present a new tissue harmonic imaging (THI) method that uses multi chirp signals. Medical ultrasound images are required to be finer in both signal-to-noise ratio (SNR) and spatial resolution. For the solution, THI and pulse compression technique (PCT) have been researched. To avoid the overlap of the fundamental component and the harmonic component in frequency domain, the bandwidth of the fundamental component is required to be narrow. In our proposed method,we employ multi chirp signals. Each bandwidth of the transmitted signals is designed without overlap of the fundamental components and the harmonic components. The harmonic components of the obtained echo signals are extracted and vector-correlated with the mismatched filters corresponding to the harmonic frequencies. As a result of experiments, it is shown that we can obtain the high resolution images by these harmonic components. The results demonstrate the feasibility of the proposed method.
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Keyword(in English) tissue harmonic imaging / pulse compression technique / chirp / pulse inversion
Paper # US2010-16
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Committee US
Conference Date 2010/6/17(1days)
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Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) US2010-16 Tissue Harmonic Imaging with Chirp Signal Based on Split and Merge Strategy
Sub Title (in English)
Keyword(1) tissue harmonic imaging
Keyword(2) pulse compression technique
Keyword(3) chirp
Keyword(4) pulse inversion
1st Author's Name Masayuki TANABE
1st Author's Affiliation Graduate School of System Design, Tokyo Metropolitan University:JSPS Research Fellow (DC)()
2nd Author's Name Takuya YAMAMURA
2nd Author's Affiliation Graduate School of System Design, Tokyo Metropolitan University
3rd Author's Name Kan OKUBO
3rd Author's Affiliation Graduate School of System Design, Tokyo Metropolitan University
4th Author's Name Norio TAGAWA
4th Author's Affiliation Graduate School of System Design, Tokyo Metropolitan University
Date 2010-06-24
Paper # US2010-16
Volume (vol) vol.110
Number (no) 91
Page pp.pp.-
#Pages 5
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