发明名称 |
SIGNAL PROCESSING DEVICE, ULTRASOUND DIAGNOSTIC APPARATUS, AND SIGNAL PROCESSING METHOD |
摘要 |
A signal processing device which uses a first signal waveform of ultrasound reflected from an object in a first compressed state and a second signal waveform of ultrasound reflected from the object in a second compressed state and calculates an elasticity of the object affected by a change in a compressed state includes: a phase difference calculation unit which calculates a phase difference component in each time between the first signal waveform and the second signal waveform; a correlation calculation unit which calculates an elasticity pertaining to a difference in angular frequencies between the first signal waveform and the second signal waveform and an initial phase difference according to a correlation between the each time and the phase difference component in the each time; and an elasticity calculation unit which calculates the elasticity on the basis of the difference in angular frequencies. |
申请公布号 |
US2015316514(A1) |
申请公布日期 |
2015.11.05 |
申请号 |
US201514681629 |
申请日期 |
2015.04.08 |
申请人 |
KONICA MINOLTA, INC. |
发明人 |
TAKEDA Yoshihiro |
分类号 |
G01N29/50;G01N29/24;A61B8/08 |
主分类号 |
G01N29/50 |
代理机构 |
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代理人 |
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主权项 |
1. A signal processing device which uses a first signal waveform of ultrasound reflected from an object in a first compressed state and a second signal waveform of ultrasound reflected from the object in a second compressed state and calculates an elasticity of the object affected by a change in a compressed state, the device comprising:
a phase difference calculation unit which calculates a phase difference component in each time between the first signal waveform and the second signal waveform; a correlation calculation unit which calculates an elasticity pertaining to a difference in angular frequencies between the first signal waveform and the second signal waveform and an initial phase difference according to a correlation between the each time and the phase difference component in the each time; and an elasticity calculation unit which calculates the elasticity on the basis of the difference in angular frequencies. |
地址 |
Tokyo JP |