Adaptive signal processing scheme for contrast agent imaging
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United States of America Patent
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Sep 30, 2003
Grant Date -
Oct 10, 2002
app pub date -
Apr 4, 2001
filing date -
Apr 4, 2001
priority date (Note) -
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Abstract
An ultrasound system includes a transmit/receive switch (502), at least one frequency band selection circuit (512), and a selection unit (511). The selection unit (511) is used to determine if the data being received are from tissue or contrast agent regions. Depending on which type of region the data are from, different signal processing techniques are applied to the data. For example for tissue regions, a harmonic filter can be applied to the signal. If the signals are from contrast agent flow regions, both the harmonic filter and a fundamental filter can be used.
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