Method and apparatus for automatically adjusting spectral doppler gain
AssigneeGeneral Electric Company
InventorsLihong Pan, David Dubberstein
Life of this patent
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Abstract
Method and apparatus for automatically adjusting a parameter used in the display of a Doppler spectral image comprises acquiring a plurality of spectral lines of Doppler data. A subset of Doppler data is determined from the plurality of spectral lines of Doppler data. A noise characteristic of the subset of Doppler data is calculated, and a signal characteristic of the subset of Doppler data is identified. The noise and signal characteristics are compared, and a system parameter is adjusted based on a result of the comparing step.
Claims20
A method for automatically adjusting a parameter used in the display of a Doppler spectral image, comprising:
- acquiring a plurality of spectral lines of Doppler data,
- determining a subset of Doppler data from the plurality of spectral lines of Doppler data;
- calculating a noise characteristic of the subset of Doppler data;
- identifying a signal characteristic of the subset of Doppler data;
- comparing the noise and the signal characteristics;
- and
- adjusting a system parameter based on a result of the comparing step.
An ultrasound system for acquiring Doppler spectral data and automatically adjusting a system parameter used in the display of a Doppler spectrum, comprising:
- a transducer transmitting and receiving ultrasound signals within a scan plane of a subject;
- a beamformer deriving data samples representative of the ultrasound signals for a sample gate within the scan plane;
- a Doppler processing module generating a set of raw frequency bins of Doppler data from the data samples;
- a scan conversion module scan converting the set of raw frequency bins of Doppler data;
- a control processing module analyzing a plurality of spectral lines of Doppler data to identify a noise characteristic and a signal characteristic, the control processing module automatically adjusting a system parameter based on a comparison of the noise and signal characteristics;
- and
- a display architecture displaying the Doppler spectrum corresponding to the sample gate within the scan plane.
A method for automatically adjusting spectral gain of a spectrum displayed on a monitor of an ultrasound system, comprising:
- determining a noise intensity and a predetermined level of frequency based on a plurality of spectral lines of Doppler data acquired over a period of time;
- calculating signal intensity as a function of the period of time at a frequency based on the predetermined level of frequency and zero frequency;
- identifying a signal component within the signal intensity;
- and
- adjusting system gain based on a comparison of the signal component and the noise intensity.
Dependencies are inferred from the claim text.