Method of imaging in ultrasound diagnosis and diagnostic ultrasound system
First Claim
1. A diagnostic ultrasound system for examining tissue of an object using an ultrasonic beam signal, the system comprising:
- means for detecting tissue motion velocities at a plurality of sampling points in a section of the object scanned by the ultrasonic beam;
means for producing a single frame of two-dimensionally mapped velocity data based on the detected tissue motion velocities;
means for obtaining plural sets of velocity data indicating properties of plural local regions in the single frame of the two-dimensionally mapped velocity data;
means for analyzing a motion state of the tissue on the basis of the plural sets of velocity data; and
means for displaying analysis results of the tissue motion state.
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Accused Products
Abstract
A diagnostic ultrasound system comprising an element for detecting a velocity of motion of a tissue, such as a cardiac muscle or a vascular wall, contained in an object at every sampling point in a section of the object and an element for creating two-dimensionally mapped data of the velocity in the section. The system further comprises an element for analyzing a motion state of the tissue on the basis of local velocities falling into a plurality of local regions set on the two-dimensionally mapped data of the velocity and an element for displaying analysis results of the motion state. The velocity detecting element transmits an ultrasonic pulse signal toward the tissue in order to acquire a Doppler shifted echo, according to a pulsed Doppler technique.
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Citations
37 Claims
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1. A diagnostic ultrasound system for examining tissue of an object using an ultrasonic beam signal, the system comprising:
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means for detecting tissue motion velocities at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; means for producing a single frame of two-dimensionally mapped velocity data based on the detected tissue motion velocities; means for obtaining plural sets of velocity data indicating properties of plural local regions in the single frame of the two-dimensionally mapped velocity data; means for analyzing a motion state of the tissue on the basis of the plural sets of velocity data; and means for displaying analysis results of the tissue motion state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A diagnostic ultrasound system for examining tissue of an object using an ultrasonic beam, the system comprising:
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means for detecting in real time tissue motion velocities at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; means for producing in time sequence a plurality of frames of two-dimensionally mapped velocity data based on the detected tissue motion velocities; means for obtaining plural sets of velocity data respectively indicating properties of a plurality of local regions in each of the plural frames of the two-dimensionally mapped velocity; means for analyzing a motion state of the tissue on the basis of the plural sets of velocity data obtained for each of the plurality of frames of the two-dimensionally mapped velocity data means for transforming the analyzed tissue motion state into corresponding time-dependent velocity data; and means for displaying the time-dependent velocity data. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A diagnostic ultrasound system for examining tissue of an object using an ultrasonic beam, the system comprising:
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means for detecting tissue motion velocities at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; means for producing a single frame of two-dimensionally mapped velocity data in the section on the basis of the detected velocities; means for providing a plurality of tissue motion directions on the single frame of the two-dimensionally mapped velocity data, means for calculating a plurality of velocity gradients along the plurality of directions provided on the two-dimensionally mapped velocity data, and means for displaying the velocity gradients as a two-dimensional image. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of imaging tissue of an object under examination using an ultrasonic beam the method comprising the steps of:
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detecting velocities of tissue motion at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; producing a single frame of two-dimensionally mapped velocity data in the section based on the detected tissue motion velocities; obtaining plural sets of velocity data respectively indicating properties of a plurality of local regions in the single frame of the two-dimensionally mapped velocity data; analyzing a motion state of the tissue on the basis of velocity values of the plural sets of velocity data; and displaying analysis results of the motion state.
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36. A method of imaging tissue of an object under diagnostic examination using an ultrasonic beam, the method comprising the steps of:
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detecting in real time velocities of tissue motion at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; producing, in time sequence, plural frames of two-dimensionally mapped velocity data from the detected tissue motion velocities; obtaining plural sets of velocity data individually reflecting properties of a plurality of local regions in each of the plural frames of the two-dimensionally mapped velocity data; analyzing a motion state of the tissue on the basis of the plural sets of velocity data obtained for each of the plural frames of the two-dimensionally mapped velocity data; transforming analyzed results of the tissue motion state into corresponding time-dependent velocity data; and displaying the time-dependent velocity data.
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37. A method of imaging tissue of an object under diagnostic examination using an ultrasonic beam, the method comprising the steps of:
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detecting velocities of tissue motion at a plurality of sampling points in a section of the object scanned by the ultrasonic beam; producing a single frame of two-dimensionally mapped velocity data on the basis of the detected velocities; indicating tissue motion directions in the single frame of two-dimensionally mapped velocity data; calculating velocity gradient data of the tissue motions indicated in the two-dimensionally mapped velocity data; and displaying the velocity gradient data in a two-dimensional image.
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Specification