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公开(公告)号:US20070038108A1
公开(公告)日:2007-02-15
申请号:US11303622
申请日:2005-12-15
申请人: Xiaohui Hao , Kutay Ustuner , Gregory Holley , Seshadri Srinivasan , Albert Gee
发明人: Xiaohui Hao , Kutay Ustuner , Gregory Holley , Seshadri Srinivasan , Albert Gee
IPC分类号: A61B8/00
CPC分类号: A61B8/06 , A61B8/488 , G01S7/52038 , G01S15/8954 , G01S15/8959 , G01S15/8979
摘要: Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.
摘要翻译: 用编码的激发脉冲进行诊断超声波成像。 由于使用频率编码的激励脉冲,流量信息可能会受到空间重合失调和估计误差的困扰。 流量数据中的空间位置偏移偏移以与B模式或其他成像对齐。 影像中心频率随深度的变化而补偿流量估计值。 由于编码激励可用的宽带宽信息可以通过估计来自两个频带的速度来允许抗混叠。
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公开(公告)号:US5961460A
公开(公告)日:1999-10-05
申请号:US838920
申请日:1997-04-11
CPC分类号: G01S15/8981 , A61B8/14 , A61B8/488 , G01S7/5206 , A61B8/06 , A61B8/13 , G01N2291/02491 , G01S7/52038 , G01S7/52071
摘要: An ultrasonic imaging system generates Doppler and B-mode image signals, and then uses a modulated, non-linear mapping function to combine the Doppler and B-mode image signals into an output signal. In another mode of operation the imaging system generates fundamental and harmonic frequency intensity values and maps these intensity values to display indicia, preferably with a modulated, non-linear mapping function.
摘要翻译: 超声成像系统生成多普勒和B模式图像信号,然后使用调制的非线性映射函数将多普勒和B模式图像信号组合成输出信号。 在另一种操作模式中,成像系统产生基本和谐波频率强度值,并将这些强度值映射到显示标记,优选用调制的非线性映射函数。
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