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Title:
ULTRASOUND IMAGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/129351
Kind Code:
A1
Abstract:
 Provided is an ultrasound imaging apparatus whereby artifacts in a generated image can be reduced even when the imaging subject moves during spatially encoded transmission/reception. In the present invention, spatially encoded ultrasonic waves are transmitted three or more times toward a predetermined position from at least two transmission regions of an ultrasonic probe simultaneously. A reception unit in the present invention includes a decoding unit and a synthesizing unit, and the decoding unit performs decoding corresponding to the spatial encoding and generates a decoded reception signal (HA1) using two or more of three or more reception signals (R1, R2, R3) outputted by the reception regions in corresponding fashion to the three or more transmissions of ultrasonic waves. This processing is performed for each of two or more different combinations of the two or more reception signals used, and a plurality of decoded reception signals (HA1, HA2) are thereby generated. The synthesizing unit adds the plurality of decoded reception signals (HA1, HA2) and obtains a decoded reception signal (HA') in which an unwanted signal (19b) is suppressed.

Inventors:
ISHIHARA CHIZUE (JP)
IKEDA TEIICHIRO (JP)
MASUZAWA HIROSHI (JP)
Application Number:
JP2015/051722
Publication Date:
September 03, 2015
Filing Date:
January 22, 2015
Export Citation:
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Assignee:
HITACHI ALOKA MEDICAL LTD (JP)
International Classes:
A61B8/14
Domestic Patent References:
WO2014021105A12014-02-06
Foreign References:
JP2013503681A2013-02-04
JPH11155867A1999-06-15
Attorney, Agent or Firm:
Sannozaka Patent Law Firm (JP)
Patent business corporation The Sanno hill patent firm (JP)
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