Surgery – Truss – Pad
Patent
1993-03-01
1994-07-12
Kamm, William E.
Surgery
Truss
Pad
12866109, 7386125, 348163, 348607, A61B 806
Patent
active
053278941
ABSTRACT:
An ultrasonic imaging system includes a receiver which demodulates the echo signals received by a transducer array and dynamically focuses the baseband echo signals, and a color flow processor which includes an adaptive wall filter in the form of a circular convolution filter that enables a narrow band of wall signals to be removed without loss of data samples. The mean frequency of the resulting filtered baseband echo signals is used to indicate the velocity of flowing reflectors and to control color of the displayed image.
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S. Leavitt et al., "A Scan Conversion Algorithm for Displaying Ultrasound Images", Hewlett-Packard Journal, Oct. 1983, pp. 30-34.
C. Kasai et al., "Real-Time Two-Dimensional Blood Flow Imaging Using an Autocorrelation Technique", IEEE Transactions on Sonics and Ultrasonics, vol. SU-32, No. 3, May 1985, pp. 458-463.
General Electric Company
Kamm William E.
Manuel George
Snyder Marvin
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