Method of ultrasound imaging and diagnostic ultrasound system

Details Method of ultrasound imaging and diagnostic ultrasound system Method of ultrasound imaging and diagnostic ultrasound system

1996-05-14

1997-05-13

Manuel, George

Surgery

Truss

Pad

12866202, 12866005, A61B 800

Patent

active

056283229

ABSTRACT:
Using a Doppler technique, contrast echo imaging is carried out in order to properly measure the velocity of a contrast medium injected into a patient body by intravenous injection. A diagnostic ultrasound system includes: a unit for extracting a Doppler shift of a nonlinear echo component from a received echo, the nonlinear echo component being attributable to reflection of an ultrasound beam from the ultrasound contrast medium injected into blood. A unit converts a Doppler shift f.sub.d into a velocity component v according to the following conversion expression:

REFERENCES:
patent: 5197477 (1993-03-01), Peterson et al.
patent: 5271404 (1993-12-01), Corl et al.
J. Acoust. Soc. Am., vol. 91, No.4, p. 2324, May 12, 1992, S. Smith, et al., "A Dual Frequency Ultrasonic Probe for Medical Application".
Ultrasonic Imaging, vol. 14, pp. 134-158, 1992, B. Schrope, et al., "Simulated Capillary Blood Flow Measurement Using a Nonlinear Ultrasonic Contrast Agent".
Radiology, vol. 182, p. 142, 1992, P.N. Burns, et al., "Harmonic Imaging: New Imaging and Doppler Method for Contrast-Enhanced Ultrasound".

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