Method and system for graphically representing blood flow velocity parameters
AssigneeShenzhen Mindray Bio-Medical Electronics Co., Ltd.
InventorYigang Du
Life of this patent
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Abstract
An ultrasonic blood flow parameter displaying method, comprises: acquiring, by means of a probe, an ultrasonic signal from an object to be scanned; acquiring, according to the ultrasonic signal, a plurality of velocities and directions of blood flow within the object to be scanned; extracting the plurality of velocities and directions of blood flow; quantifying the dispersion of the plurality of velocities and directions of the blood flow extracted; and displaying the quantization result of the dispersion. The present invention provides a method for quantifying and evaluating the direction of the motion of blood flow, and provides a better perspective of observation for a user.
Claims19
An ultrasonic blood flow parameter displaying method, comprising:
- obtaining an ultrasonic signal from a scan target through a probe;
- obtaining blood flow velocity vectors in the scan target according to the ultrasonic signal;
- obtaining an ultrasonic image of at least a portion of the scan target according to the ultrasonic signal;
- displaying the ultrasonic image;
- obtaining an indication of a sampling box on the ultrasonic image;
- extracting multiple blood flow velocity directions from the blood flow velocity vectors associated with the sampling box;
- calculating a variance or a standard deviation of the extracted multiple blood flow velocity directions;
- segmenting an area of the ultrasonic image associated with the sampling box into a plurality of non-overlapping regions according to the variance or the standard deviation for each region;
- constructing an icon model comprising a plurality of blocks respectively corresponding to the plurality of non-overlapping regions, wherein each block indicates the variance or the standard deviation of the extracted multiple blood flow velocity directions for the respective region;
- and
- comparatively displaying the icon model simultaneously with the ultrasonic image.
An ultrasonic imaging system, comprising:
- a display;
- a probe configured to transmit an ultrasonic beam to a scan target;
- a receiving circuit configured to receive an echo signal of the ultrasonic beam;
- a beam-former configured to perform a beam-forming on the echo signal to obtain an ultrasonic signal;
- and
- an image processor configured to:
- obtain blood flow velocity vectors in the scan target according to the ultrasonic signal;
- obtain an ultrasonic image of at least a portion of the scan target according to the ultrasonic signal;
- present the ultrasonic image on the display;
- obtain an indication of a sampling box on the ultrasonic image;
- extract multiple blood flow velocity directions from the blood flow velocity vectors associated with the sampling box;
- calculate a variance or a standard deviation of the extracted multiple blood flow velocity directions;
- segment an area of the ultrasonic image associated with the sampling box into a plurality of non-overlapping regions according to the variance or the standard deviation for each region;
- and
- construct an icon model comprising a plurality of blocks respectively corresponding to the plurality of non-overlapping regions, wherein each block indicates the variance or the standard deviation of the extracted multiple blood flow velocity directions for the respective region;
- wherein the display is configured to comparatively present the icon model simultaneously with the ultrasonic image.
Dependencies are inferred from the claim text.