Enhancement in Diagnostic Ultrasound Spectral Doppler Imaging
First Claim
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1. A method for enhancing spectral Doppler imaging, the method comprising:
- estimating a spectrum for a Doppler gate location;
detecting a boundary between a noise region and a signal region of the spectrum;
altering, by a processor, the noise region, the signal region, or the noise and signal region of the spectrum, the altering being a function of the boundary; and
displaying an image, the image being a function of the altered spectrum.
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Abstract
Spectral Doppler imaging is enhanced. The boundary between noise and signal is determined in each spectrum. The boundary is used to differentiate noise from signal. The noise level is reduced and/or the signal level is increased in the respective regions of the spectrum, providing more distinguishable regions.
11 Citations
20 Claims
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1. A method for enhancing spectral Doppler imaging, the method comprising:
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estimating a spectrum for a Doppler gate location; detecting a boundary between a noise region and a signal region of the spectrum; altering, by a processor, the noise region, the signal region, or the noise and signal region of the spectrum, the altering being a function of the boundary; and displaying an image, the image being a function of the altered spectrum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a non-transitory computer readable storage medium having stored therein data representing instructions executable by a programmed processor for enhancing spectral Doppler imaging, the storage medium comprising instructions for:
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locating an envelope in a spectral strip; increasing a separation between signals of the spectral strip on different sides of the envelope; and displaying the spectral strip with the signals having the increased separation. - View Dependent Claims (14, 15, 16, 17)
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18. A system for enhancing spectral Doppler imaging, the system comprising:
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a transmit beamformer operable to acoustic energy to a Doppler gate; a receive beamformer operable to sample acoustic echoes from the Doppler gate and in response to the acoustic energy; a spectral Doppler processor configured to estimate a spectrum from the samples of the acoustic echoes for the Doppler gate; and a second processor configured to detect noise and signal regions of the spectrum and to weight the noise and signal regions of the spectrum differently. - View Dependent Claims (19, 20)
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Specification