Doppler ultrasound method and apparatus for monitoring blood flow and hemodynamics
First Claim
1. A Doppler ultrasound system, comprising:
- an ultrasound probe to emit ultrasound signals along an ultrasound beam axis and detect reflected signals; and
a processor coupled to the ultrasound probe and operable to generate Doppler ultrasound data from the detected reflected signals and process the Doppler ultrasound data to calculate blood flow data, including blood flow velocity data and detected Doppler signal power data, for a plurality of locations along the ultrasound beam axis and for a plurality of time intervals, the processor further operable to identify from the blood flow data locations along the ultrasound beam axis at which blood flow having a hemodynamic characteristic is present.
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Abstract
A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow and hemodynamics. The Doppler ultrasound system includes an ultrasound probe to emit ultrasound signals and detect reflected signals therefrom and further includes a processor coupled to the ultrasound probe and operable to process the detected reflected signals and calculate therefrom blood flow data for a plurality of locations at time intervals, the processor further operable to identify locations at which blood flow having a hemodynamic characteristic is present based on the blood flow data calculated for a plurality of the time intervals. A user interface coupled to the processor provides blood flow information based on the blood flow data, the blood flow information representative of detected blood flow and the presence of the hemodynamic characteristic.
99 Citations
28 Claims
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1. A Doppler ultrasound system, comprising:
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an ultrasound probe to emit ultrasound signals along an ultrasound beam axis and detect reflected signals; and a processor coupled to the ultrasound probe and operable to generate Doppler ultrasound data from the detected reflected signals and process the Doppler ultrasound data to calculate blood flow data, including blood flow velocity data and detected Doppler signal power data, for a plurality of locations along the ultrasound beam axis and for a plurality of time intervals, the processor further operable to identify from the blood flow data locations along the ultrasound beam axis at which blood flow having a hemodynamic characteristic is present. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A Doppler ultrasound system, comprising:
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an ultrasound probe to emit ultrasound signals and detect reflected signals therefrom; and a processor coupled to the ultrasound probe and operable to process the detected reflected signals and calculate therefrom blood flow data for a plurality of locations at a plurality of time intervals, the processor further operable to identify locations at which blood flow having a hemodynamic characteristic is present based on the calculated blood flow data. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A Doppler ultrasound system, comprising:
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an ultrasound probe to emit ultrasound signals and detect reflected signals therefrom; an ultrasound processor coupled to the ultrasound probe and operable to process the detected reflected signals and generate therefrom blood flow data for a plurality of locations as a function of time, the processor further operable to identify locations at which blood flow satisfying a hemodynamic criterion is present based on the blood flow data; and a user interface coupled to the processor to provide blood flow information based on the blood flow data, the blood flow information representative of detected blood flow and the presence of the hemodynamic characteristic. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. In a Doppler ultrasound system having a ultrasound transducer emitting ultrasound signals, a method for processing detected reflected signals comprising:
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processing the detected reflected signals and calculating therefrom blood flow data for a plurality of locations along an ultrasound beam axis and for a plurality of time intervals; identifying locations along the ultrasound beam axis at which blood flow having a hemodynamic characteristic is present from the calculated blood flow data; and generating from the blood flow data blood flow information representative of detected blood flow and the presence of the hemodynamic characteristic. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification