Flow spectrograms synthesized from ultrasonic flow color doppler information
First Claim
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1. A method for producing a spectrogram from a plurality of two or three dimensional ultrasound images depicting motion comprising:
- delineating a region of interest (ROI) in one of the images, the ROI comprising a plurality of pixels where motion is present in the image;
forming histograms of the motion data of the pixels of the ROI in a plurality of images over a plurality of defined temporal intervals;
mapping the histograms to temporally discrete display elements; and
displaying the display elements as a spectrogram for the ROI.
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Abstract
An ultrasonic diagnostic imaging system and method are described by which a user can delineate a region of interest (122, 128) in a colorflow Doppler image. The ultrasound system processes the Doppler pixel information of the region of interest (122, 128) to produce a spectrogram illustrating motion at the region of interest (122, 128) as a function of time. In a preferred embodiment the Doppler pixel information is processed by histograms to produce the spectrogram data.
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Citations
21 Claims
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1. A method for producing a spectrogram from a plurality of two or three dimensional ultrasound images depicting motion comprising:
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delineating a region of interest (ROI) in one of the images, the ROI comprising a plurality of pixels where motion is present in the image;
forming histograms of the motion data of the pixels of the ROI in a plurality of images over a plurality of defined temporal intervals;
mapping the histograms to temporally discrete display elements; and
displaying the display elements as a spectrogram for the ROI. - View Dependent Claims (2, 3, 4, 5)
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6. A method for displaying the distribution of a motion characteristic occurring at a region of interest in a two or three dimensional ultrasound image of the body comprising:
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acquiring a sequence of spatially dimensioned ultrasound images in which a motion characteristic is displayed;
delineating a region of interest (ROI) in one of the images where motion is present in the image;
processing the motion data from image points of the delineated ROI to determine the distribution of a motion characteristic as a function of time; and
displaying the distribution of the motion characteristic as a function of time. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. An ultrasonic diagnostic imaging system which provides motion information concerning a location in the body comprising:
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an ultrasound probe which transmits ultrasonic energy and receives ultrasonic echo signals in response;
a beamformer coupled to the probe which forms coherent echo signals from spatial locations in the body;
a motion processor responsive to the spatial echo signals which produces image data depicting motion;
a display responsive to the image data which produces two or three dimensional images depicting motion on a spatial basis;
a user control by which a user can delineate a region of interest in an image depicting motion;
a motion characteristic processor, responsive to image signals depicting motion of a region of interest which computes the distribution of a motion characteristic as a function of time, wherein the display displays the distribution of a motion characteristic as a function of time for a delineated region of interest. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification