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A real-time 3D ultrasonic imager based on a 128×128 transducer array

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3 Author(s)
T. White ; Lockheed Martin IR Imaging Syst., Lexington, MA, USA ; K. Erikson ; A. Nicoli

Real-time 3D ultrasound imaging has the potential for making dramatic improvements in medical imaging applications. Until recently, fabrication difficulties have limited even the most advanced 3D ultrasound systems to mechanically scanned 1 D or 1.5 D linear arrays together with off-line reconstruction, or 2D arrays with a limited number of displayed real-time planes. Fabrication of a real-time volumetric imaging system requires a large number and high density of array elements and the interconnections to the associated electronics. Lockheed Martin has developed a 42×64 (2688 total) element 5 MHz 2D array, hybridized to a custom CMOS integrated circuit. Results to date have demonstrated bistatic real-time imaging with three dimensional resolution of 1 mm in a tissue equivalent test object. In this paper, the authors describe their work-in-progress with a 128×128 (16,384 total) element array and 3D realtime imaging system. Through massively parallel, focal plane processing, the goal of real-time 3D ultrasonic imaging in the low MHz frequency is now achievable

Published in:

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE  (Volume:5 )

Date of Conference:

31 Oct-3 Nov 1996