Object dependent compensation of missing array elements

Pai Chi Li; Stephen W. Flax; Emad S. Ebbini; Matthew O'Donnell

doi:10.1109/ULTSYM.1992.275945

Object dependent compensation of missing array elements

Pai Chi Li, Stephen W. Flax, Emad S. Ebbini, Matthew O'Donnell

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Missing array elements due to discontinuous acoustic windows into the body produce undesired beamforming artifacts and degrade spatial and contrast resolution. To minimize undesired artifacts, an algorithm using multiple receive beams and the totalleast-squares (TLS) method is proposed in this paper. Results show that this algorithm can effectively reduce imperfections in the point spread function of the imager. Combined with local scatterer statistics, the algorithm is modified for compensation on distributed scattering sources. Results also indicate that compensated images are comparable to full array images. This method, therefore, can enhance detection of low contrast lesions using large phased array apertures.

Original language	English (US)
Title of host publication	1992 Ultrasonics Symposium Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	559-562
Number of pages	4
ISBN (Electronic)	0780305620
DOIs	https://doi.org/10.1109/ULTSYM.1992.275945
State	Published - Jan 1 1992
Externally published	Yes
Event	1992 Ultrasonics Symposium - Tucson, United States Duration: Oct 20 1992 → Oct 23 1992

Publication series

Name	Proceedings - IEEE Ultrasonics Symposium
Volume	1992-October
ISSN (Print)	1051-0117

Conference

Conference	1992 Ultrasonics Symposium
Country	United States
City	Tucson
Period	10/20/92 → 10/23/92

Access

10.1109/ULTSYM.1992.275945

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Object dependent compensation of missing array elements. / Li, Pai Chi; Flax, Stephen W.; Ebbini, Emad S.; O'Donnell, Matthew.

1992 Ultrasonics Symposium Proceedings. Institute of Electrical and Electronics Engineers Inc., 1992. p. 559-562 275945 (Proceedings - IEEE Ultrasonics Symposium; Vol. 1992-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Li, PC, Flax, SW, Ebbini, ES & O'Donnell, M 1992, Object dependent compensation of missing array elements. in 1992 Ultrasonics Symposium Proceedings., 275945, Proceedings - IEEE Ultrasonics Symposium, vol. 1992-October, Institute of Electrical and Electronics Engineers Inc., pp. 559-562, 1992 Ultrasonics Symposium, Tucson, United States, 10/20/92. https://doi.org/10.1109/ULTSYM.1992.275945

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