Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-05-14
2000-03-14
Jastrzab, Jeffrey R.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600455, 600443, A61B 800
Patent
active
060366435
ABSTRACT:
An ultrasonic diagnostic imaging system and method are described by which a fundamental frequency signal is transmitted into the body and harmonic (nonlinear) echo returns are received from the transmission. The harmonic echo signals are Doppler processed and displayed. The harmonic Doppler signals may be displayed alone, or in combination with a fundamental frequency or harmonic grayscale image. In a preferred embodiment harmonic signals returned from moving tissue are segmented on an intensity or frequency basis and displayed. The inventive apparatus and method provide highly resolved ultrasonic images of moving tissue which are substantially unobscured by image clutter from structures or tissue in the near field.
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Criton Aline Laure
Loupas Thanasis
Pesque Patrick Rene
Peterson Roy Beck
Robinson Marshall Taylor
Advanced Technology Laboratories, Inc.
Brinton Yorks, Jr. W.
Jastrzab Jeffrey R.
Patel Maulin
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