Ultrasound imaging preferable to ultrasound contrast echography

Details Ultrasound imaging preferable to ultrasound contrast echography Ultrasound imaging preferable to ultrasound contrast echography

1995-12-27

1998-03-10

Manuel, George

Telegraphy

Systems

Printing

A61B 800

Patent

active

057249768

ABSTRACT:
Provided is a diagnostic ultrasound system producing an image whose brightness is enhanced by a contrast medium by implementing contrast echography based on intravenous injection. A diagnostic ultrasound system comprises a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal. The system still comprises a unit for transmitting the transmission ultrasonic wave to a subject by providing the probe the electrical driving signal substantially consisting of a fundamental component of a given driving frequency. The non-fundamental component is typically a second harmonic. A non-fundamental component of the driving frequency is intentionally lowered in power relative to the fundamental component by a suppressing element in the transmitting unit. The system comprises a unit for receiving the echo signal from the probe and processing the echo signal into a display image data reflecting both the fundamental and non-fundamental components and a unit for displaying the display image data.

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patent: 5465725 (1995-11-01), Soyed-Bolorforosh
Ultrasonic Imaging, vol. 14, pp. 134-158, 1992, B. Schrope, et al., "Simulated Capillary Blood Flow Measurement Using A Nonlinear Ultrasonic Contrast Agent".
Radiology 182(P), vol. 141, P.N. Burns, et al., "Harmonic Imaging: New Imaging and Doppler Method For Contrast-Enhanced Ultrasound".
J. Acoust. Soc. Am., vol. 91, No. 4, Pt. 2, Apr. 1992, p. 2324, George S. K. Wong, et al., "Engineering Acoustics: Transducers, Arrays, and Techniques".

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