Automatic Ultrasonic Doppler Measurements
First Claim
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1. An ultrasonic diagnostic imaging system for analyzing blood flow comprising:
- means for acquiring spectral Doppler information for a sequence of cardiac cycles;
a spectral Doppler analyzer, responsive to the spectral Doppler information, which acts to automatically identify a cardiac cycle exhibiting a specified characteristic;
a measurement tool, responsive to the spectral Doppler analyzer, which acts to perform a predetermined analysis on the identified cardiac cycle and produce a result;
a user control operable to actuate the measurement tool; and
a display responsive to the measurement tool for displaying the measurement result.
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Abstract
An ultrasonic diagnostic imaging system produces a spectral Doppler display on which automated measurements may be made. The waveform is analyzed by the ultrasound system to identify the peak velocity of each cardiac cycle of the sequence, and the cardiac cycle with the highest peak velocity value. When a measurement tool is launched, the system displays the highest peak velocity cycle and makes the selected measurement on the data of that heart cycle. The system may advantageously use a peak velocity tracing algorithm in support of this feature. The technique can be used with a variety of measurement tools.
38 Citations
20 Claims
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1. An ultrasonic diagnostic imaging system for analyzing blood flow comprising:
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means for acquiring spectral Doppler information for a sequence of cardiac cycles; a spectral Doppler analyzer, responsive to the spectral Doppler information, which acts to automatically identify a cardiac cycle exhibiting a specified characteristic; a measurement tool, responsive to the spectral Doppler analyzer, which acts to perform a predetermined analysis on the identified cardiac cycle and produce a result; a user control operable to actuate the measurement tool; and a display responsive to the measurement tool for displaying the measurement result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of making a measurement on the ultrasonic spectral Doppler information of a sequence of cardiac cycles comprising:
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selecting the ultrasonic spectral Doppler information of a sequence of cardiac cycles; selecting a measurement tool which acts to make a measurement on the spectral Doppler information; automatically identifying the cardiac cycle with the maximum peak velocity value; and making the measurement on the identified cardiac cycle. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of making a measurement on the ultrasonic spectral Doppler information of a sequence of cardiac cycles comprising:
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selecting the ultrasonic spectral Doppler information of a sequence of cardiac cycles; selecting a measurement tool which acts to make a measurement on the spectral Doppler information; automatically identifying the cardiac cycle exhibiting a predetermined characteristic; and making the measurement on the identified cardiac cycle. - View Dependent Claims (19, 20)
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Specification