ULTRASOUND IMAGING SYSTEM USING BEAMFORMING TECHNIQUES FOR PHASE COHERENCE GRATING LOBE SUPPRESSION

World Intellectual Property Organization Patent

APP PUB NO WO-2011095896-A1
SERIAL NO

PCTIB2011000430

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Abstract

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High-frequency ultrasound imaging can be performed with greater quality and suppressed grating lobes by using methods and systems for effectively reducing the temporal length of transmit grating lobe signals in received ultrasound echoes. Systems and methods are provided for improved high-frequency ultrasound imaging. In various aspects, the method of shortening the time domain of grating lobe signals comprises splitting an array of N transmit elements into K sub-apertures. In further aspects, the grating lobes are suppressed by performing signal processing of the shortened grating lobe signals. In certain aspects, the signal processing method comprises weighting the samples by a calculated phase coherence factor.

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Patent Owner(s)

Patent OwnerAddress
UNIV DALHOUSIECANOVA SCOTIA CANADA

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Inventor(s)

Inventor Name Address
BANCE MANOHAR HALIFAX
BROWN JEREMY HALIFAX NOVA SCOTIA B3L 1Y1
ADAMSON ROBERT HALIFAX NOVA SCOTIA B3H 4G4
TORBATIAN ZAHRA TORONTO ON

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