发明名称 |
Removal of clutter components in ultrasound color-doppler imaging |
摘要 |
An ultrasound imaging apparatus and method in which an ultrasound signal is transmitted a plurality of times in each scanning direction and its echo is received. A Doppler signal detected from a group of echo signals consisting of a train of sequential Doppler data for each spatial sample position in each scanning direction. The amount of instantaneous changes in a phase of a clutter component included in the Doppler signal is estimated, the clutter component occurring due to reflection of the ultrasound signal from an organ. A phase of the Doppler signal is corrected using the estimated amount of instantaneous changes in the phase. A constant value corresponding to the clutter component is subtracted from the Doppler signal of which phase is corrected, information representing a blood flow is extracted based on the Doppler signal of which clutter component is removed and the extracted information is displayed in color.
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申请公布号 |
US5910118(A) |
申请公布日期 |
1999.06.08 |
申请号 |
US19970942329 |
申请日期 |
1997.10.01 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KANDA, RYOICHI;SHIKI, EIICHI |
分类号 |
A61B8/06;G01S15/89;(IPC1-7):A61B8/06 |
主分类号 |
A61B8/06 |
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