DYNAMIC CARDIAC IMAGING USING A PHASED-ARRAY TRANSDUCER SYSTEM.
This report describes the design considerations, performance characteristics and initial clinical results of a new, high-resolution, real-time, two-dimensional ultrasound sector scanner designed specifically for cardiac use. Such a system is unique as it relies upon phased-array principles, rather than mechanical means, to steer the sound beam through the target volume. The prototype system uses a linear array of 16 ultrasound transducers, resonant at approximately 2 MHz. At the site of contact, the array currently in use measures 24 by 14 mm where the latter dimension corresponds to the elevation of each of the 16 active elements.
Kisslo, J; von Ramm, O; Thurstone, FL
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