Abstract
Phase aberration due to tissues with inhomogeneous acoustic speeds is a major source of image degradation in medical ultrasound. In most phased array pulse-echo ultrasound systems, the delays used to focus and steer the beams are calculated assuming constant acoustic speed. However, it is known that the acoustic speed varies for different types of tissue, resulting in defocusing, loss of resolution, and blurring of the image. The issue of phase aberration measurement and correction has been the focus of several research groups in recent years1,2,3. Many of the existing techniques correct for aberration by estimating the phase error profile and using the estimate to align the rf signals.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
M. O’Donnell, and S. W. Flax, “Phase aberration measurements in medical ultrasound: human studies,” Ultrasonic Imaging, 10(1):1–11 (1988).
L. Nock, and G. E. Trahey, “Phase aberration correction in medical ultrasound using speckle brightness as a quality factor,” J. Acoust Soc. Am., 85(5):1819–1833 (1989).
G. C. Ng, S.S. Worrell, P. D. Freiburger and G. E. Trahey, “A comparative evaluation of several algorithms for phase aberration correction,” IEEE Trans. UFFC 41(5):631–643 (1994).
M. Allam and A. Moghaddamjoo, “Spatial-temporal DFT projection for wideband array processing,” IEEE Signal Processing Letters, 1(2):35–37 (1994).
M. Allam and A. Moghaddamjoo, “Two-dimensional DFT projection for wideband direction-of-arrival estimation,” IEEE Trans, on Signal Processing, 43(7):1728–1732 (1995).
W. T. Mayo and P. M. Embree, “Two dimensional processing of pulsed doppler signals,” U.S. Patent 4,930,513.
L. S. Wilson, “Description of broad-band pulsed doppler ultrasound processing using the two-dimensional fourier transform,” Ultrasonic Imaging, 13:301–315 (1991).
M. Allam and J. F. Greenleaf, “Phase aberration correction for ultrasound imaging in temporal-spatial frequency domain,” Proc. IEEE Int. Con. Acoust Speech and Sig. Proc, ICASSP-95, (1995).
M. Allam and J.F. Greenleaf, “Isomorphism between pulsed-wave doppler ultrasound and direction-of-arrival estimation-part I: basic principles,” submitted to IEEE Trans. UFFC, (in review).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1996 Springer Science+Business Media New York
About this chapter
Cite this chapter
Allam, M.E., Greenleaf, J.F. (1996). Two-Dimensional Frequency Domain Phase Aberration Correction. In: Tortoli, P., Masotti, L. (eds) Acoustical Imaging. Acoustical Imaging, vol 22. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8772-3_25
Download citation
DOI: https://doi.org/10.1007/978-1-4419-8772-3_25
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-4687-6
Online ISBN: 978-1-4419-8772-3
eBook Packages: Springer Book Archive