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Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing

Publication ,  Journal Article
Yen, JT; Smith, SW
Published in: Proceedings of the IEEE Ultrasonics Symposium
December 1, 2003

In previous work, we developed two generations of a real-time rectilinear volumetric scanner operating at 5 MHz for abdominal, breast or vascular imaging using a Mills cross 2-D array and a rectilinear periodic 2-D array. To improve spatial resolution performance and sensitivity, we developed a new design using 4:1 receive mode multiplexing. With 4:1 multiplexing, the new 65,000 element 2-D array has 4 × 256 = 1024 receivers so that 256 receivers can be used on any image line. The two major benefits of using receive mode multiplexing include: (1) an increase in receive sensitivity due to a greater number of receive elements and (2) a decrease in grating lobe and clutter levels due to increased receive element density. Theoretical simulations and analysis show an increase of about 13 dB in sensitivity compared to our previous work. With these encouraging results, a new 65,000 element 5 MHz 2-D array having 1024 receivers and 169 transmitters was prototyped. In addition, the multiplexer and control circuitry were designed, built, and interfaced with both the transducer and volumetric scanner. Images of tissue-mimicking phantoms and in vivo targets were obtained. Using a spherical cyst phantom, experimental results showed a +12 dB improvement in signal-to-noise ratio and a +6 dB improvement in contrast compared to our previous work.

Duke Scholars

Published In

Proceedings of the IEEE Ultrasonics Symposium

ISSN

1051-0117

Publication Date

December 1, 2003

Volume

1

Start / End Page

954 / 959
 

Citation

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Yen, J. T., & Smith, S. W. (2003). Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing. Proceedings of the IEEE Ultrasonics Symposium, 1, 954–959.
Yen, J. T., and S. W. Smith. “Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing.” Proceedings of the IEEE Ultrasonics Symposium 1 (December 1, 2003): 954–59.
Yen JT, Smith SW. Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing. Proceedings of the IEEE Ultrasonics Symposium. 2003 Dec 1;1:954–9.
Yen, J. T., and S. W. Smith. “Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing.” Proceedings of the IEEE Ultrasonics Symposium, vol. 1, Dec. 2003, pp. 954–59.
Yen JT, Smith SW. Real-time rectilinear 3-D ultrasound with 4:1 receive mode multiplexing. Proceedings of the IEEE Ultrasonics Symposium. 2003 Dec 1;1:954–959.

Published In

Proceedings of the IEEE Ultrasonics Symposium

ISSN

1051-0117

Publication Date

December 1, 2003

Volume

1

Start / End Page

954 / 959