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Ultrasonograph and ultrasonography

  • US 20070219447A1
  • Filed: 12/09/2004
  • Published: 09/20/2007
  • Est. Priority Date: 12/10/2003
  • Status: Abandoned Application
First Claim
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1. An ultrasonic diagnostic apparatus for diagnosing vascular endothelial function, said apparatus comprising:

  • an ultrasonic transmitter for transmitting ultrasonic transmission waves into tissues of living body;

    an ultrasonic receiver for receiving an ultrasonic echo from vascular wall in said tissues of living body;

    a phase detector for detecting a phase of said ultrasonic echo;

    an arithmetic unit for obtaining thickness change between two arbitrary positions among a plurality of positions with said vascular wall from a phase detection signal determined at said phase detector, and for obtaining elastic modulus of said vascular wall from said thickness change and a blood pressure value; and

    at least one of a storage unit or a display unit, said storage unit storing changes over time of elastic modulus of said vascular wall when artery is avascularized and the avascularization is then stopped, and said display unit displaying changes over time of elastic modulus of said vascular wall when artery is avascularized and the avascularization is then stopped.

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