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3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study

Publication ,  Journal Article
Fronheiser, MP; Dahl, JJ; Pinton, GF; Chao, Z; Smith, SW
Published in: Proceedings - IEEE Ultrasonics Symposium
December 1, 2006

Acoustic radiation force impulse (ARFI) imaging has been reported as a successful method of measuring mechanical properties of tissue. Current methods use linear arrays to obtain a 2D image of tissue displacement. In this study, we have modified our real-time 3D ultrasound system (Volumetrics Medical Imaging, Durham, NC) to acquire volumetric ARFI data and create 3D displacement images. To ensure that the pulse to pulse correlation values from a 2.5-MHz matrix array transducer with 440 transmit and 256 receive channels were sufficient for ARFI processing, we transmitted a series of 2-cycle pulses into a homogeneous 4 kPa tissue-mimicking phantom (CIRS, Norfolk, VA) and collected corresponding 16:1 parallel received RF lines spaced 1.2° apart. We found pulse to pulse normalized cross-correlation values were greater than 0.995 for scan depths of 3.5 cm. Our 3D ARFI pulse sequence consists of 3 2-cycle reference pulses followed by a set of 3 256-cycle pushing pulses. A series of 42 2-cycle tracking pulses are then used to monitor the displacement of the sample volume. Displacements between the reference and tracking RF data are estimated with ultrasonic cross-correlation methods. When acquiring a single scan line in a tissue mimicking phantom with a Young's modulus of 4 kPa, we measured maximum displacements of approximately 3 μm near the focus. 3D ARFI images were produced at depths of 0.5-3.5 cm using 9 transmit lines, which produced 144 receive lines to form a 12 line by 12 line 3D pyramid of 13.2° yielding B-scan and C-scan planes of displacement data. System modifications are ongoing to the 3D Doppler processing algorithm (1D autocorrelation) to permit 3D ARFI processing to occur in realtime. © 2006 IEEE.

Duke Scholars

Published In

Proceedings - IEEE Ultrasonics Symposium

DOI

ISSN

1051-0117

Publication Date

December 1, 2006

Volume

1

Start / End Page

1144 / 1147
 

Citation

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Fronheiser, M. P., Dahl, J. J., Pinton, G. F., Chao, Z., & Smith, S. W. (2006). 3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study. Proceedings - IEEE Ultrasonics Symposium, 1, 1144–1147. https://doi.org/10.1109/ULTSYM.2006.296
Fronheiser, M. P., J. J. Dahl, G. F. Pinton, Z. Chao, and S. W. Smith. “3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study.” Proceedings - IEEE Ultrasonics Symposium 1 (December 1, 2006): 1144–47. https://doi.org/10.1109/ULTSYM.2006.296.
Fronheiser MP, Dahl JJ, Pinton GF, Chao Z, Smith SW. 3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study. Proceedings - IEEE Ultrasonics Symposium. 2006 Dec 1;1:1144–7.
Fronheiser, M. P., et al. “3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study.” Proceedings - IEEE Ultrasonics Symposium, vol. 1, Dec. 2006, pp. 1144–47. Scopus, doi:10.1109/ULTSYM.2006.296.
Fronheiser MP, Dahl JJ, Pinton GF, Chao Z, Smith SW. 3D acoustic radiation force impulse (ARFI) imaging using a 2d matrix array: Feasibility study. Proceedings - IEEE Ultrasonics Symposium. 2006 Dec 1;1:1144–1147.

Published In

Proceedings - IEEE Ultrasonics Symposium

DOI

ISSN

1051-0117

Publication Date

December 1, 2006

Volume

1

Start / End Page

1144 / 1147