ULTRASOUND IMAGE PROCESSING APPARATUS AND PROGRAM

WIPO Patent Application WO/2012/160873

A1

The invention generates Doppler waveform images, the visibility of which is improved appropriately in accord with changes in measurement conditions. The ultrasound diagnostic apparatus is equipped with: a frequency-analyzing unit that generates frequency spectrum data on Doppler shift frequency components of ultrasonic waves that are received after being transmitted towards a subject and reflected in the subject; and a line data-generating unit for generating line data, wherein arrays of multiple pixels are stipulated according to the corresponding frequencies and each pixel value represents the magnitude of the Doppler shift frequency component, on the basis of the frequency spectrum data. The ultrasound diagnostic apparatus determines whether or not each pixel of line data at a previously appointed time point is a noise pixel, and the values of pixels that are determined to be noise pixels are adjusted by multiplying the pixel value with a weighting factor (w) of 0 to less than 1.

KOBAYASHI YOSHIYUKI (JP)
TANAKA SATOSHI (JP)
OGATA FUTOSHI (JP)
MURASHITA MASARU (JP)

PCT/JP2012/058800

November 29, 2012

April 02, 2012

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HITACHI ALOKA MEDICAL LTD (JP)
KOBAYASHI YOSHIYUKI (JP)
TANAKA SATOSHI (JP)
OGATA FUTOSHI (JP)
MURASHITA MASARU (JP)

A61B8/06

WO2005115248A1

2005-12-08

JP2006326291A	2006-12-07
JP2005318921A	2005-11-17
JPH1133024A	1999-02-09
JP2003245279A	2003-09-02
JP2009291325A	2009-12-17
JPH0355048A	1991-03-08
JPH07241291A	1995-09-19

YKI Patent Attorneys (JP)
Patent business corporation YKI international patent firm (JP)

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