SPREAD SPECTRUM CODING WAVEFORM IN ULTRASONIC IMAGING

Japanese Patent JP2018011997

A

PROBLEM TO BE SOLVED: To provide a device which has improved the problem in which in a conventional ultrasonic device, desirable image quality cannot often be obtained due to some factors including spatial resolution and difference in tissue.SOLUTION: An ultrasonic imaging technology using spread spectrum, coherent, a frequency coding waveform, and/or a phase encoding waveform is disclosed. A method characterizing biological substance from an acoustic signal includes: composing individual orthogonal coding waveforms,generating a composite waveform to transmit to an object biological substance, and including one or both of a frequency coding waveform or a phase encoding waveform; transmitting a composite acoustic waveform to the object biological substance and receiving a response acoustic waveform which corresponds to at least some of transmitted acoustic waveforms configuring the composite acoustic waveform and is returned from at least a part of the object biological substance; and processing the received response acoustic waveform and generating at least a part of range Doppler data of the object biological substance.SELECTED DRAWING: Figure 1A

ALLAN WEGNER

JP2017187288A

January 25, 2018

September 28, 2017

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DECISION SCIENCES INT CORP

A61B8/06; A61B8/14

JP2005152608A	2005-06-16
JP2003190157A	2003-07-08
JP2000041980A	2000-02-15
JPS62117535A	1987-05-29
JP2010082425A	2010-04-15
JP2002539877A	2002-11-26
JPH02210286A	1990-08-21
JP2002034985A	2002-02-05
JP2007510450A	2007-04-26
JP2005095576A	2005-04-14

US6213947B1	2001-04-10
US20050242985A1	2005-11-03
US20070055160A1	2007-03-08

Yusuke Hiraki
Toshiaki Watanabe
Hidekazu Matsumaru

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