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Proceedings Paper

Real-time 3D ultrasound imaging with a 1D fan-beam transducer array
Author(s): Robert Entrekin; Philip Keller; Brent Robinson
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Paper Abstract

The problem of producing real-time, 3-D (volumetric) ultrasonic images can be divided into two main tasks: (1) acquiring 3-D echo data from a target volume in a sufficiently short time, and (2) reducing this 3-D data set into a suitable 2-D image. Both of these tasks can be accomplished simultaneously by a method, dubbed `Slit-O-Vision,' wherein a diverging lens is used to expand the (normally collimated) elevation beam pattern of a conventional linear or phased array transducer into a `fan beam.' The 2-D images produced in this manner make an object in the target volume appear three-dimensional, because the fan beam integrates the echoes at a given range across the entire `slice thickness' of the tomogram, thus projecting (collapsing) the volumetric echo data into a single 2-D projection image. This also allows the volumetric image to be updated 30 times per second. Slit-O-Vision may be useful in medical or sonar imaging applications.

Paper Details

Date Published: 5 November 1992
PDF: 9 pages
Proc. SPIE 1733, New Developments in Ultrasonic Transducers and Transducer Systems, (5 November 1992); doi: 10.1117/12.130600
Show Author Affiliations
Robert Entrekin, Advanced Technology Labs., Inc. (United States)
Philip Keller, Advanced Technology Labs., Inc. (United States)
Brent Robinson, Advanced Technology Labs., Inc. (United States)

Published in SPIE Proceedings Vol. 1733:
New Developments in Ultrasonic Transducers and Transducer Systems
Frederick L. Lizzi, Editor(s)

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