Method and apparatus for spectral strain rate visualization

Details Method and apparatus for spectral strain rate visualization Method and apparatus for spectral strain rate visualization

2006-04-04

2006-04-04

Imam, Ali (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

Reexamination Certificate

active

07022078

ABSTRACT:
Methods and apparatus are provided in a diagnostic ultrasound system for generating and displaying strain rate spectrums corresponding to the deformation of a tissue structure within a subject, designated by a sample gate, in response to Doppler signals generated by the ultrasound system. Various combinations of several processing techniques are employed including spectral estimation processing such as discrete Fourier transform (DFT) processing, circular convolution, signal scaling
ormalization, and complex autocorrelation.

REFERENCES:
patent: 6099471 (2000-08-01), Torp et al.
patent: 6352507 (2002-03-01), Torp et al.
patent: 6579240 (2003-06-01), Bjaerum et al.

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