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Aberration measurement and correction with a high resolution 1.75D array

Publication ,  Journal Article
Fernandez, AT; Dahl, JJ; Dumont, DM; Trahey, GE
Published in: Proceedings of the IEEE Ultrasonics Symposium
December 1, 2001

Accurate measurement of tissue induced aberrations is necessary for effective adaptive ultrasound imaging. We acquired single channel RF data on a 6.7 MHz, 8 × 128 array (Tetrad Co.) operating at F/1.0 in azimuth and F/2.89 in elevation. This array was interfaced to a Siemens Elegra scanner, allowing for data acquisition during routine clinical scanning. Breast images in three patients and four volunteers (for a total of 16 scans), and thyroid and liver images in six volunteers (10 scans each) were taken. A least squares algorithm was employed to estimate the arrival time error induced by the tissue and to generate corrected images. In general, mild (20-40 nsec r.m.s.) and spatially stable aberration profiles were measured.

Duke Scholars

Published In

Proceedings of the IEEE Ultrasonics Symposium

ISSN

1051-0117

Publication Date

December 1, 2001

Volume

2

Start / End Page

1489 / 1494
 

Citation

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Fernandez, A. T., Dahl, J. J., Dumont, D. M., & Trahey, G. E. (2001). Aberration measurement and correction with a high resolution 1.75D array. Proceedings of the IEEE Ultrasonics Symposium, 2, 1489–1494.
Fernandez, A. T., J. J. Dahl, D. M. Dumont, and G. E. Trahey. “Aberration measurement and correction with a high resolution 1.75D array.” Proceedings of the IEEE Ultrasonics Symposium 2 (December 1, 2001): 1489–94.
Fernandez AT, Dahl JJ, Dumont DM, Trahey GE. Aberration measurement and correction with a high resolution 1.75D array. Proceedings of the IEEE Ultrasonics Symposium. 2001 Dec 1;2:1489–94.
Fernandez, A. T., et al. “Aberration measurement and correction with a high resolution 1.75D array.” Proceedings of the IEEE Ultrasonics Symposium, vol. 2, Dec. 2001, pp. 1489–94.
Fernandez AT, Dahl JJ, Dumont DM, Trahey GE. Aberration measurement and correction with a high resolution 1.75D array. Proceedings of the IEEE Ultrasonics Symposium. 2001 Dec 1;2:1489–1494.

Published In

Proceedings of the IEEE Ultrasonics Symposium

ISSN

1051-0117

Publication Date

December 1, 2001

Volume

2

Start / End Page

1489 / 1494