DYNAMIC POWER DOPPLER IMAGING IN ULTRASOUND
First Claim
Patent Images
1. A method for Doppler imaging in ultrasound, the method comprising:
- acquiring, with an ultrasound scanner, ultrasound data representing a region of a patient;
estimating, with a Doppler processor, powers and velocities from the ultrasound data for respective locations in the region;
calculating spatial derivatives of the velocities;
combining the spatial derivatives of the velocity and the powers;
mapping results of the combining to colors; and
generating an image of the region from the colors.
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Abstract
For Doppler imaging in ultrasound, a single parameter is formed from both power and velocity. In any combination function, a derivative of velocity and/or velocity are combined with power. The resulting value is used to look-up a color from a one-dimensional color map.
9 Citations
20 Claims
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1. A method for Doppler imaging in ultrasound, the method comprising:
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acquiring, with an ultrasound scanner, ultrasound data representing a region of a patient; estimating, with a Doppler processor, powers and velocities from the ultrasound data for respective locations in the region; calculating spatial derivatives of the velocities; combining the spatial derivatives of the velocity and the powers; mapping results of the combining to colors; and generating an image of the region from the colors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A non-transitory computer readable storage medium having stored therein data representing instructions executable by a programmed processor for Doppler imaging in ultrasound, the storage medium comprising instructions for:
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calculating spatial gradients for velocity values estimated for ultrasound scan locations in a patient; summing the spatial gradients, power values, and the velocity values, the power values estimated for the ultrasound scan locations; mapping results of the summing to color values; and generating a color flow image with the color values. - View Dependent Claims (16, 17, 18)
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19. A system for Doppler imaging in ultrasound, the system comprising:
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a transducer and beamformer for scanning a scan region; a Doppler estimator configured to estimate energy and velocity samples of the scan region at different locations; a processor configured to calculate, for each of the different locations, a value of a parameter with a function having the energy and derivatives of velocity samples as variables; a memory configured to store a one-dimensional map of colors indexed by the parameter. - View Dependent Claims (20)
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Specification