发明名称 |
Ultrasound color flow imaging at high frame rates |
摘要 |
A method is provided to improve the frame-rate in color-flow ultrasound imaging using simultaneous spatially-distinct transmit beams with one or more frequency bands per transmit beam. Pulses of different center frequencies are used simultaneously in different (lateral and/or elevational) directions, thereby reducing the scanning time and improving the frame-rates. Optionally, a multi-modal pulse is used, and flow is estimated separately for the different frequencies. The flow estimates for these pulses are appropriately combined to improve low-velocity sensitivity and to reduce aliasing. A flow sample count with two or more different pulse repetition intervals can be used to further improve low-flow sensitivity and minimize aliasing.
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申请公布号 |
US7946990(B2) |
申请公布日期 |
2011.05.24 |
申请号 |
US20050242162 |
申请日期 |
2005.09.30 |
申请人 |
SIEMENS MEDICAL SOLUTIONS USA, INC. |
发明人 |
SRINIVASAN SESHADRI;PHILLIPS PATRICK J.;BRADLEY CHARLES E. |
分类号 |
A61B8/00;A61B8/14 |
主分类号 |
A61B8/00 |
代理机构 |
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