Ultrasound imaging preferable to ultrasound contrast echography
First Claim
1. An ultrasound probe, comprising:
- a transducer formed with a piezoelectric member for performing a conversion between an electric signal and an ultrasound signal bidirectionally; and
at least three electrodes including a ground electrode attached to the piezoelectric member so as to have a passband characteristic of at least two kinds of frequency components whose center frequencies retain a multiple relation with each other and represent a multi-humped frequency characteristic.
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Accused Products
Abstract
Provided is a diagnostic ultrasound system producing an image whose brightness is enhanced by a contrast medium by implementing contrast echography based on intravenous injection. A diagnostic ultrasound system comprises a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal. The system still comprises a unit for transmitting the transmission ultrasonic wave to a subject by providing the probe the electrical driving signal substantially consisting of a fundamental component of a given driving frequency. The non-fundamental component is typically a second harmonic. A non-fundamental component of the driving frequency is intentionally lowered in power relative to the fundamental component by a suppressing element in the transmitting unit. The system comprises a unit for receiving the echo signal from the probe and processing the echo signal into a display image data reflecting both the fundamental and non-fundamental components and a unit for displaying the display image data.
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Citations
78 Claims
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1. An ultrasound probe, comprising:
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a transducer formed with a piezoelectric member for performing a conversion between an electric signal and an ultrasound signal bidirectionally; and at least three electrodes including a ground electrode attached to the piezoelectric member so as to have a passband characteristic of at least two kinds of frequency components whose center frequencies retain a multiple relation with each other and represent a multi-humped frequency characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A diagnostic ultrasound system comprising:
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an ultrasound probe comprising, a plurality of transducers each formed with a piezoelectric member for performing a conversion between an electric signal and an ultrasound signal bidirectionally, and at least three electrodes including a ground electrode attached to each of the transducers so as to have a passband characteristic of at least two kinds of frequency components whose center frequencies retain a multiple relation with each other and represent a multi-humped frequency characteristic; and means for transmitting the ultrasound signal to a subject and receiving the ultrasound signal echoed from the subject through the ultrasound probe on the basis of a transmission/reception operation related to the at least two kinds of the frequency components. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 49, 50, 51, 52, 53, 54, 55)
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22. A diagnostic ultrasound system, comprising:
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a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal; means for transmitting the transmission ultrasonic wave to a subject to be diagnosed by providing the probe the electrical driving signal substantially consisting of a fundamental component corresponding to a given driving frequency, a non-fundamental component of the driving signal being intentionally lowered in power relative to the fundamental component; means for receiving the electrical echo signal from the probe and processing the electrical echo signal into a display image data; and means for displaying the display image data. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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73. A diagnostic ultrasound system, comprising:
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a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal; means for transmitting the transmission ultrasonic wave to a subject to be diagnosed by providing the probe the electrical driving signal substantially consisting of a fundamental component corresponding to a given driving frequency, a non-fundamental component of the driving signal being intentionally lowered in power relative to the fundamental component; means for receiving the electrical echo signal from the probe and processing the electrical echo signal into a display image data reflecting both the fundamental and non-fundamental components; and means for displaying the display image data.
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74. A diagnostic ultrasound system by which an ultrasound contrast echography is carried out to acquire an ultrasound contrast image in a state that an ultrasound contrast medium has been given to a subject to be diagnosed in a manner of intravenous injection, the system comprising:
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a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal; means for transmitting the transmission ultrasonic wave to the subject by providing the probe the electrical driving signal substantially consisting of a fundamental component corresponding to a given driving frequency, a non-fundamental component of the driving signal being intentionally lowered in power relative to the fundamental component; means for receiving the electrical echo signal from the probe and processing the electrical echo signal into a display image data reflecting at least the non-fundamental components; and means for displaying the display image data. - View Dependent Claims (75, 76, 77)
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78. A method of acquiring a diagnostic ultrasound image comprising the steps of:
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preparing a probe for converting an electrical driving signal into a corresponding transmission ultrasound wave and converting an echoed ultrasound wave into a corresponding electrical echo signal; transmitting the transmission ultrasonic wave to a subject to be diagnosed by providing the probe the electrical driving signal substantially consisting of a fundamental component corresponding to a given driving frequency, a non-fundamental component of the driving signal being intentionally lowered in power relative to the fundamental component; and receiving the electrical echo signal from the probe and processing the electrical echo signal into a display image data; and
displaying the display image data.
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Specification