Ultrasonic imaging method with multiple pulse cancellation

Details Ultrasonic imaging method with multiple pulse cancellation Ultrasonic imaging method with multiple pulse cancellation

1998-04-15

1999-05-11

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600447, A61B8/00

Patent

active

059022434

ABSTRACT:
An ultrasound imaging method includes the step of transmitting two ultrasonic transmit pulses into a region. First components of the transmit pulses are inverted with respect to each other while second components of the transmit pulses are not. Received ultrasound pulses associated with the transmit pulses are summed to selectively cancel the harmonic or fundamental components. By properly selecting the inverted and noninverted portions of the transmit pulses, the transmit pulses may be made unipolar, or they may be pre-distorted to further reduce second harmonic energy associated with system or tissue non-linearities.

REFERENCES:
patent: 5010885 (1991-04-01), Fink et al.
patent: 5415171 (1995-05-01), Goh et al.
patent: 5419328 (1995-05-01), Goh et al.
patent: 5632277 (1997-05-01), Chapman
patent: 5706819 (1998-01-01), Hwang

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