A phased array ultrasound system for cardiac imaging
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 phase-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 which are 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 dimension of each of the 16 active elements.
Kisslo, J; Von Ramm, OT; Thurstone, FL
Excerpta Medica, Ics No. 363
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