Coded Transmission in Synthetic Transmit Aperture Ultrasound Imaging Method
The paper presents the study of synthetic transmit
aperture method applying the Golay coded transmission for medical
ultrasound imaging. Longer coded excitation allows to increase the
total energy of the transmitted signal without increasing the peak
pressure. Signal-to-noise ratio and penetration depth are improved
maintaining high ultrasound image resolution.
In the work the 128-element linear transducer array with 0.3 mm
inter-element spacing excited by one cycle and the 8 and 16-bit
Golay coded sequences at nominal frequencies 4 MHz was used.
Single element transmission aperture was used to generate a spherical
wave covering the full image region and all the elements received the
echo signals. The comparison of 2D ultrasound images of the wire
phantom as well as of the tissue mimicking phantom is presented to
demonstrate the benefits of the coded transmission. The results were
obtained using the synthetic aperture algorithm with transmit and
receive signals correction based on a single element directivity
function.
[1] Y. Tasinkevych, A. Nowicki, I. Trots, "Element directivity influence in
the synthetic focusing algorithm for ultrasound imaging," in Proc. 57th
Open Seminar on Acoustics, Gliwice, Poland, 2010, pp. 197-200.
[2] J.A. Jensen, "Linear description of ultrasound imaging systems," Note
for the International Summer School on Advanced Ultrasound Imaging,
Technical University of Denmark, June 10, 1999.
[3] G.E. Trahey, L.F. Nock, "Synthetic receive aperture imaging with phase
correction for motion and for tissue ihomogeneities ÔÇö part I: Basic
principles," IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 39, no.
4, pp. 489-495, 1992.
[4] I. Trots, A. Nowicki, M. Lewandowski, "Synthetic transmit aperture in
ultrasound imaging," Archives of Acoustics, vol. 43, no. 4, pp. 685-695,
2009.
[5] Y. Tasinkevych, I. Trots, A. Nowicki, P.A. Lewin, "Modified synthetic
transmit aperture algorithm for ultrasound imaging," Ultrasonics, vol.
52, no. 2, pp. 333-342, 2012.
[6] A.R. Selfridge, G.S. Kino, B.T. Khuri-Yakub, "A theory for the
radiation pattern of a narrow-strip acoustic transducer," Appl. Phys.
Lett., vol. 37, no. 1, pp. 35-36, 1980.
[7] M.J.E. Golay, "Complementary series," IRE Tran. Inf. Theory, vol. 7,
pp. 82-87, 1961.
[8] E.J. Danicki, "Complementary code realization based on surface
acoustic waves," Bulletin of Military Technical Academy, vol. XXIII, no.
1, pp. 53-56, 1974.
[9] I. Trots, A. Nowicki, W. Secomski, J. Litniewski, "Golay sequences -
side-lobe canceling codes for ultrasonography," Archives of Acoustics,
vol. 29, no. 1, pp. 87-97, 2004.
[10] A. Nowicki, Z. Klimonda, M. Lewandowski, J. Litniewski, P.A. Lewin,
I. Trots, "Direct and post-compressed sound fields for different coded
excitation," Acoustical Imaging, vol. 28, pp. 399-407, 2007.
[11] M. Xu, L.V. Wang, "Analytic explanation of spatial resolution related to
bandwidth and detector aperture size in thermoacoustic or photoacoustic
reconstruction," Phys. Rev. E, vol. 67, no. 5, pp. 1-15, 2003.
[1] Y. Tasinkevych, A. Nowicki, I. Trots, "Element directivity influence in
the synthetic focusing algorithm for ultrasound imaging," in Proc. 57th
Open Seminar on Acoustics, Gliwice, Poland, 2010, pp. 197-200.
[2] J.A. Jensen, "Linear description of ultrasound imaging systems," Note
for the International Summer School on Advanced Ultrasound Imaging,
Technical University of Denmark, June 10, 1999.
[3] G.E. Trahey, L.F. Nock, "Synthetic receive aperture imaging with phase
correction for motion and for tissue ihomogeneities ÔÇö part I: Basic
principles," IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 39, no.
4, pp. 489-495, 1992.
[4] I. Trots, A. Nowicki, M. Lewandowski, "Synthetic transmit aperture in
ultrasound imaging," Archives of Acoustics, vol. 43, no. 4, pp. 685-695,
2009.
[5] Y. Tasinkevych, I. Trots, A. Nowicki, P.A. Lewin, "Modified synthetic
transmit aperture algorithm for ultrasound imaging," Ultrasonics, vol.
52, no. 2, pp. 333-342, 2012.
[6] A.R. Selfridge, G.S. Kino, B.T. Khuri-Yakub, "A theory for the
radiation pattern of a narrow-strip acoustic transducer," Appl. Phys.
Lett., vol. 37, no. 1, pp. 35-36, 1980.
[7] M.J.E. Golay, "Complementary series," IRE Tran. Inf. Theory, vol. 7,
pp. 82-87, 1961.
[8] E.J. Danicki, "Complementary code realization based on surface
acoustic waves," Bulletin of Military Technical Academy, vol. XXIII, no.
1, pp. 53-56, 1974.
[9] I. Trots, A. Nowicki, W. Secomski, J. Litniewski, "Golay sequences -
side-lobe canceling codes for ultrasonography," Archives of Acoustics,
vol. 29, no. 1, pp. 87-97, 2004.
[10] A. Nowicki, Z. Klimonda, M. Lewandowski, J. Litniewski, P.A. Lewin,
I. Trots, "Direct and post-compressed sound fields for different coded
excitation," Acoustical Imaging, vol. 28, pp. 399-407, 2007.
[11] M. Xu, L.V. Wang, "Analytic explanation of spatial resolution related to
bandwidth and detector aperture size in thermoacoustic or photoacoustic
reconstruction," Phys. Rev. E, vol. 67, no. 5, pp. 1-15, 2003.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:59046", author = "Ihor Trots and Yuriy Tasinkevych and Andrzej Nowicki and Marcin Lewandowski", title = "Coded Transmission in Synthetic Transmit Aperture Ultrasound Imaging Method", abstract = "The paper presents the study of synthetic transmit
aperture method applying the Golay coded transmission for medical
ultrasound imaging. Longer coded excitation allows to increase the
total energy of the transmitted signal without increasing the peak
pressure. Signal-to-noise ratio and penetration depth are improved
maintaining high ultrasound image resolution.
In the work the 128-element linear transducer array with 0.3 mm
inter-element spacing excited by one cycle and the 8 and 16-bit
Golay coded sequences at nominal frequencies 4 MHz was used.
Single element transmission aperture was used to generate a spherical
wave covering the full image region and all the elements received the
echo signals. The comparison of 2D ultrasound images of the wire
phantom as well as of the tissue mimicking phantom is presented to
demonstrate the benefits of the coded transmission. The results were
obtained using the synthetic aperture algorithm with transmit and
receive signals correction based on a single element directivity
function.", keywords = "Golay coded sequences, radiation pattern, synthetic
aperture, ultrasound imaging.", volume = "6", number = "3", pages = "308-6", }