David Liang, MD, PhD
Publication Details
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Forward-looking catheters.
Semin Interv Cardiol. 1997; (1): 75-81
Current intravascular ultrasound catheters provide a cross-sectional view of the blood vessel that limits their ability to visualize severely stenosed or occluded vessels. Forward-looking ultrasound catheters can overcome these limitations. Development of a practical forward-looking ultrasound catheter requires solutions to address the need for improved lateral resolution and depth of penetration presented by the forward-looking format. Methods are also needed to generate the forward-looking scan within the space constraints of a catheter. New developments using mechanical scanning methods suggest that a practical device appears achievable. Two-dimensional, as well as three-dimensional imaging, may be possible. Early efforts towards a phased array scanner have also begun.
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