Contrast harmonic detection with chirp excitation in 3f_0 transmit phasing(International Forum on Medical Imaging in Asia 2009 (IFMIA 2009))

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概要

• 論文の詳細を見る

• The method of third harmonic (3f_0) transmit phasing provides improved contrast-to-tissue ratio(CTR) by mutual cancellation between the frequency-sum and the frequency-difference components in tissue harmonic background. To further enhance the signal-to-noise ratio(SNR) with minimal destruction of the microbubbles, the effect of chirp waveform in combination with the 3f_0 transmit phasing was studied using both in-vitro experiments and simulations. Our results indicate that the chirp waveform provides better SNR at the cost of degraded tissue harmonic suppression and thus results in less CTR improvement. Consequently, with the chirp waveform, a tradeoff exists between the SNR improvement and the CTR improvement in 3f_0 transmit phasing.

• 社団法人電子情報通信学会の論文
• 2009-01-12

著者

• Chiu Yi-yuan

  Department Of Electrical Engineering National Taiwan University Of Science And Technology

• Wang Hong-wei

  Department Of Electrical Engineering National Taiwan University Of Science And Technology

• Shen Che-Chou

  Department of Electrical Engineering, National Taiwan University of Science and Technology

• Shen Che-chou

  Department Of Electrical Engineering National Taiwan University Of Science And Technology

関連論文

• Contrast harmonic detection with chirp excitation in 3f_0 transmit phasing(International Forum on Medical Imaging in Asia 2009 (IFMIA 2009))

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