Method and apparatus for frequency control of an ultrasound system
First Claim
1. A method of displaying ultrasound information representing a subject during an imaging session comprising the steps of:
- displaying a B-mode image in a first region of a display, said B-mode image substantially responsive to harmonic frequencies of transmit frequencies; and
displaying a color Doppler image in combination with said B-mode image in a second region of said display, said color Doppler image substantially responsive to fundamental frequencies of transmit frequencies;
wherein the subject is free of ultrasound contrast agent throughout the entire imaging session.
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Accused Products
Abstract
A method and system for acquiring data in an ultrasound system are provided. A transducer is operatively connected to a transmit beamformer and a receive beamformer. The receive beamformer is configured to obtain a first value associated with a fundamental frequency interleaved with a second value associated with a harmonic frequency. A first transmit signal is transmitted at a first frequency. A first echo signal is received in response to the first transmit signal. At least the first value associated with the first frequency is obtained from the first echo signal. An interleaved second transmit signal is transmitted at the first frequency or a second frequency. A second echo signal is received in response to the second transmit signal. At least the second value associated with a third frequency is obtained from the second echo signal. Images are generated and displayed based on the at least one first value and the at least one second value.
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Citations
48 Claims
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1. A method of displaying ultrasound information representing a subject during an imaging session comprising the steps of:
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displaying a B-mode image in a first region of a display, said B-mode image substantially responsive to harmonic frequencies of transmit frequencies; and displaying a color Doppler image in combination with said B-mode image in a second region of said display, said color Doppler image substantially responsive to fundamental frequencies of transmit frequencies; wherein the subject is free of ultrasound contrast agent throughout the entire imaging session. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 48)
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15. An apparatus for acquiring data in an ultrasound system comprising:
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a transducer; a transmit beamformer operatively connected to said transducer; a receive beamformer operatively connected to said transducer and configured to obtain at least a first value associated with a fundamental center frequency interleaved with at least a second value associated with a harmonic center frequency during an imaging session, a subject being scanned being free of ultrasound contrast agent throughout the entire imaging session; a signal processor for acquiring B-mode information from said at least said second value and acquiring color Doppler information from said at least said first value; and a display comprising said B-mode information in a first region and said color Doppler information second value in a second region. - View Dependent Claims (16, 17, 18)
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19. A method of displaying ultrasound information comprising the steps of:
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displaying a B-mode image in a first region of a display, said B-mode image substantially responsive to harmonic frequencies of transmit frequencies; and displaying a spectral Doppler image in a second region of said display in combination with said first region, said spectral Doppler image substantially responsive to fundamental frequencies of transmit frequencies. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An ultrasound method of displaying ultrasound information representing a subject, the method comprising the steps of:
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(a) transmitting a signal at a fundamental center frequency; (b) obtaining Doppler data responsive to a harmonic center frequency of the fundamental center frequency from the subject during an imaging session, the subject being free of ultrasound contrast agent throughout the imaging session; and (c) displaying a Doppler image that is primarily a function of the Doppler data in at least a region of a display. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. An ultrasound system adapted for displaying harmonic-based ultrasound information during an imaging session representing a subject free of contrast agent the system comprising:
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a receive beamformer for obtaining signals responsive to a harmonic center frequency of the fundamental transmit center frequency from the subject during an imaging session the subject being free of ultrasound contrast agent throughout the imaging session; a Doppler processor for obtaining Doppler data responsive to the signals; and a display for displaying a Doppler image that is primarily a function of the obtained Doppler data in at least a region of a display. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. An ultrasound method of displaying ultrasound information representing a subject, the method comprising the steps of:
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(a) transmitting signals into the subject at a fundamental center frequency, (b) obtaining spectral Doppler data that is a function of the harmonic center frequency associated with a fundamental center frequency from the subject with the subject being free of ultrasound contrast agent throughout an imaging session; and (c) displaying a spectral Doppler image that is primarily a function of the spectral Doppler data in at least a region of a display. - View Dependent Claims (46, 47)
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45. An ultrasound method of displaying ultrasound information representing a subject, the method comprising the steps of:
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(a) transmitting a signal into the subject at a fundamental center frequency, (b) obtaining Doppler variance data as a function of the harmonic center frequency associated with a fundamental center frequency; and (c) displaying a Doppler variance image as a function primarily of the Doppler variance data in at least a region of a display.
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Specification