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Ultrasonic system and method for harmonic imaging in three dimensions

  • US 5,924,991 A
  • Filed: 08/20/1998
  • Issued: 07/20/1999
  • Est. Priority Date: 08/22/1997
  • Status: Expired due to Term
First Claim
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1. A method for calculating a volume quantity with a medical ultrasound system, the method comprising the steps of:

  • (a) transmitting ultrasonic energy at a first frequency band into a subject during said imaging session, said subject being free of added ultrasound contrast agent throughout the entire imaging session;

    (b) receiving ultrasonic echo information associated with said transmitted ultrasonic energy;

    (c) isolating from said echo information a plurality of information signals associated a second frequency band and a three-dimensional region of the subject, said second frequency band comprising a harmonic band of said fundamental frequency band;

    (d) calculating a volume quantity as a function of said information signals; and

    (e) displaying the volume quantity.

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