Ultrasonic imaging apparatus and ultrasonic imaging method
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United States of America Patent
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May 9, 2017
Grant Date -
Oct 1, 2009
app pub date -
Mar 24, 2009
filing date -
Mar 31, 2008
priority date (Note) -
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Abstract
An ultrasonic imaging apparatus in which ultrasonic tomographic images can be obtained without repeating ultrasonic transmission/reception at many times while sequentially changing the direction of the ultrasonic beam. The ultrasonic imaging apparatus includes: a transmitting and receiving unit for processing reception signals outputted from ultrasonic transducers; a sampling unit for generating a reception signal matrix representing ultrasonic echoes from sampling points on a section of the object; a conversion matrix calculating unit for calculating a conversion matrix representing weighting information when ultrasonic echoes from plural locations on the section are synthesized; an inverse matrix calculating unit for calculating an inverse matrix of the conversion matrix; and a sound source information calculating unit for calculating a product of the inverse matrix and the reception signal matrix to obtain a sound source signal matrix representing information on reflective sound sources within the object, and generating an image signal.
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