PMID: 16529106Mar 15, 2006Paper

Development of a real-time, high-frequency ultrasound digital beamformer for high-frequency linear array transducers

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Chang-Hong HuK Kirk Shung

Abstract

A real-time digital beamformer for high-frequency (>20 MHz) linear ultrasonic arrays has been developed. The system can handle up to 64-element linear array transducers and excite 16 channels and receive simultaneously at 100 MHz sampling frequency with 8-bit precision. Radio frequency (RF) signals are digitized, delayed, and summed through a real-time digital beamformer, which is implemented using a field programmable gate array (FPGA). Using fractional delay filters, fine delays as small as 2 ns can be implemented. A frame rate of 30 frames per second is achieved. Wire phantom (20 microm tungsten) images were obtained and -6 dB axial and lateral widths were measured. The results showed that, using a 30 MHz, 48-element array with a pitch of 100 microm produced a -6 dB width of 68 microm in the axial and 370 microm in the lateral direction at 6.4 mm range. Images from an excised rabbit eye sample also were acquired, and fine anatomical structures, such as the cornea and lens, were resolved.

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Citations

Mar 22, 2013·Biomedical Engineering Online·Amauri A AssefEduardo T Costa
Aug 15, 2009·Ultrasound in Medicine & Biology·Jeremy A BrownManohar L Bance
Nov 13, 2007·Ultrasound in Medicine & Biology·Xiaochen XuK Kirk Shung
Sep 19, 2007·European Journal of Radiology·Christian Kollmann
Dec 5, 2006·Ophthalmology·Ronald H SilvermanD Jackson Coleman
Jan 14, 2009·Clinical & Experimental Ophthalmology·Ronald H Silverman
Jul 26, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Weibao QiuLei Sun
Jul 26, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Weibao QiuLei Sun
Feb 2, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Peter R SmithSteven Freear
Jul 26, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Umar AlqasemiQuing Zhu
Dec 23, 2014·IEEE Transactions on Biomedical Circuits and Systems·Ji-Yong UmHong-June Park
Jan 10, 2009·IEEE Transactions on Medical Imaging·Rachel BittonK Kirk Shung
Jul 18, 2008·IEEE Transactions on Bio-medical Engineering·Lei SunK Kirk Shung
Mar 10, 2010·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Philippe Levesque, Mohamad Sawan
Aug 19, 2009·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Philippe Levesque, Mohamad Sawan
Jul 20, 2010·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Lequan ZhangK Kirk Shung
Oct 19, 2007·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Jin Ho ChangK Kirk Shung
Nov 7, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Chi Hyung Seo, Jesse T Yen
Mar 3, 2007·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Xiaochen XuK Kirk Shung
Nov 7, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Chang-hong HuK Kirk Shung
Aug 21, 2007·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Lei SunK Kirk Shung
Apr 25, 2012·AJR. American Journal of Roentgenology·Mutsuko MurakiTakeshi Kashiwaba
Aug 20, 2016·IEEE Transactions on Biomedical Circuits and Systems·Yoon-Jee KimHong-June Park
Apr 10, 2017·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Changhan YoonK Kirk Shung
Jan 1, 2009·Journal of Medical Ultrasound·K Kirk Shung
Jan 5, 2013·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Weibao QiuLei Sun
Mar 23, 2010·Expert Review of Ophthalmology·Roxana Ursea, Ronald H Silverman
Mar 11, 2016·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·James W RainsburyManohar Bance
Feb 6, 2017·Insights Into Imaging·Vasileios RafailidisAfroditi Charitanti-Kouridou

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