Methods and apparatus for ultrasound imaging
First Claim
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1. A computer-implemented method comprising:
- acquiring color Doppler data;
detecting one or more transitions of the color Doppler data, each of the one or more transitions being between a first area representing flow velocity in a first direction and a second area representing flow velocity not in the first direction;
evaluating a normalized energy function across one or more of the one or more transitions;
determining, for each flow area of the color Doppler data, whether the flow area is in contact with a zero velocity area, and whether the flow area is surrounded by and in contact with a flow area of opposite velocity direction; and
determining an aliasing correction for each respective flow area of the color Doppler data based on the evaluated normalized energy functions, and based on the determination of whether the respective flow area is in contact with a zero velocity area, and the determination of whether the respective flow area is surrounded by and in contact with a flow area of opposite velocity direction.
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Abstract
Some embodiments include acquisition of color Doppler data, and detection of one or more transitions of the color Doppler data, each of the one or more transitions being between a first area representing flow velocity in a first direction and a second area representing flow velocity not in the first direction. A normalized energy function across one or more of the one or more transitions is calculated, a configuration of flow areas within the color Doppler data is determined, and aliasing corrections for the color Doppler data are determined based on the normalized energy functions and the configuration of flow areas.
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Citations
40 Claims
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1. A computer-implemented method comprising:
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acquiring color Doppler data; detecting one or more transitions of the color Doppler data, each of the one or more transitions being between a first area representing flow velocity in a first direction and a second area representing flow velocity not in the first direction; evaluating a normalized energy function across one or more of the one or more transitions; determining, for each flow area of the color Doppler data, whether the flow area is in contact with a zero velocity area, and whether the flow area is surrounded by and in contact with a flow area of opposite velocity direction; and determining an aliasing correction for each respective flow area of the color Doppler data based on the evaluated normalized energy functions, and based on the determination of whether the respective flow area is in contact with a zero velocity area, and the determination of whether the respective flow area is surrounded by and in contact with a flow area of opposite velocity direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
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an aliasing correction processor configured to; acquire color Doppler data; detect one or more transitions of the color Doppler data, each of the one or more transitions being between a first area representing flow velocity in a first direction and a second area representing flow velocity not in the first direction; evaluate a normalized energy function across one or more of the one or more transitions; determine, for each flow area of the color Doppler data, whether the flow area is in contact with a zero velocity area, and whether the flow area is surrounded by and in contact with a flow area of opposite velocity direction; and determine an aliasing correction for each respective flow area of the color Doppler data based on the evaluated normalized energy functions, and based on the determination of whether the respective flow area is in contact with a zero velocity area, and the determination of whether the respective flow area is surrounded by and in contact with a flow area of opposite velocity direction. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification