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Ultrasonic scatterer, ultrasonic imaging method and ultrasonic imaging apparatus

  • US 20050004469A1
  • Filed: 07/16/2004
  • Published: 01/06/2005
  • Est. Priority Date: 01/17/2001
  • Status: Active Grant
First Claim
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1. An ultrasonic imaging method comprising the steps of:

  • (a) transmitting, to a subject, an ultrasonic wave continuing for ten cycles or more;

    (b) transmitting, to the subject, an ultrasonic wave continuing for four cycles or more and less than ten cycles after a predetermined period passes subsequently to the step (a);

    (c) receiving an ultrasonic echo generated by reflecting the ultrasonic wave transmitted at the step (b) from the subject, thereby acquiring a detection signal; and

    (d) extracting a sub-harmonic component from the ultrasonic echo based on the detection signal.

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