Volumetric ultrasound imaging with a thinned array
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United States of America Patent
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Feb 25, 2003
Grant Date -
N/A
app pub date -
Mar 20, 2002
filing date -
Jun 14, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thinned array of ultrasound transducers includes plural transmitters configured so that each transmitter insonates one segment of a volume at a time and an array of receivers electronically aimed at and dynamically focused upon subsegments of the insonated segment. The spacing between receivers is greater than one-half the transmitted wavelength. Echoes are received in a pattern that is aligned with the insonates segment so that receiver grating lobes nearest the echoes coincide with first transmitter nulls, minimizing the deleterious effects of grating lobes.
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