Method and apparatus for tissue harmonic imaging with natural (tissue) decoded coded excitation
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United States of America Patent
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May 2, 2006
Grant Date -
Mar 10, 2005
app pub date -
Oct 6, 2003
filing date -
Sep 9, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method and apparatus providing tissue harmonic imaging using an ultrasound machine. Coded pulses and the phase inverted version of the said coded pulses with time bandwidth greater than 1 are transmitted into the tissue. Backscattered echoes are received and filtered before or after coherent summation. Decoding/compressing of the received echoes of the coded pulses is implemented naturally through the propagation of the specially designed ultrawide band (>80%) waveforms inside tissue and pulse inversion. Costly decoding/compression filter are not necessary.
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