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Ultrasonic diagnostic imaging systems with power modulation for contrast and harmonic imaging

  • US 6,234,967 B1
  • Filed: 12/18/1998
  • Issued: 05/22/2001
  • Est. Priority Date: 12/18/1998
  • Status: Expired due to Fees
First Claim
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1. A method for ultrasonic diagnostic imaging of contrast agents with an array of transducer elements having a face surface opposing a target region and exhibiting a transmit aperture comprising the steps of:

  • applying a given level of transmit power to the elements of the transmit aperture when a beam is transmitted normal to the face surface of the array so as develop a desired mode of microbubble behavior at a target region at a given depth; and

    applying a level of transmit power to the elements of the transmit aperture which is in excess of said given level when a beam is transmitted at an off-angle to the face surface of the array so as to develop substantially the same mode of microbubble behavior at a target region of equivalent depth.

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