High frame rate ultrasonic diagnostic imaging systems with motion artifact reduction
First Claim
1. A method for producing an ultrasonic image of interpolated image lines with reduced susceptance to motion artifacts including at least one level of interpolation comprising the steps of:
- transmitting a plurality of laterally spaced ultrasonic beams along transmit beam locations in an image field;
receiving a plurality of laterally spaced receive beams which are located laterally on opposite sides of the transmit beam location in response to each transmitted beam; and
producing interpolated image lines from said receive beams, which comprise interpolated image lines, at least some of which are formed from temporally different receive beams located on opposite sides of a transmit beam location; and
detecting and displaying said interpolated image lines, wherein each of the interpolated image lines formed at each level of interpolation are formed from a plurality of temporally different lines.
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Abstract
An ultrasonic diagnostic imaging system and method are provided for producing r.f. interpolated image lines with reduced susceptibility to motion artifacts. A multiline beamformer receives multiple scanlines in response to each transmitted beam. Image lines are produced by r.f. interpolation of these multiline scanlines in a temporally consistent manner. In an illustrated embodiment, each image line is produced by tle interpolation of scanlines produced in response to at least two transmitted beams. In a preferred embodiment the interpolated image lines are produced by a [1 2 1] lateral filter.
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Citations
16 Claims
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1. A method for producing an ultrasonic image of interpolated image lines with reduced susceptance to motion artifacts including at least one level of interpolation comprising the steps of:
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transmitting a plurality of laterally spaced ultrasonic beams along transmit beam locations in an image field;
receiving a plurality of laterally spaced receive beams which are located laterally on opposite sides of the transmit beam location in response to each transmitted beam; and
producing interpolated image lines from said receive beams, which comprise interpolated image lines, at least some of which are formed from temporally different receive beams located on opposite sides of a transmit beam location; and
detecting and displaying said interpolated image lines, wherein each of the interpolated image lines formed at each level of interpolation are formed from a plurality of temporally different lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16)
wherein each of the interpolated image lines contain harmonic signal information enhanced in comparison to fundamental signal information.
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8. An ultrasonic diagnostic imaging system which produces an ultrasonic image of interpolated image lines with reduced susceptance to motion artifacts comprising:
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an array transducer;
a beamformer, coupled to said array transducer, which controls said array transducer to transmit a sequence of laterally spaced ultrasonic beams along transmit beam locations in an image field, and which forms laterally spaced scanlines on opposite sides of the transmit beam location in response to each transmitted beam; and
an interpolator, coupled to said beamformer and responsive to said scanlines to perform at least one level of interpolation of said scanlines, which produces interpolated image lines, at least some of which are formed from temporally different receive beams located on opposite sides of a transmit beam location; and
an image processor which detects and displays said interpolated image lines, wherein the interpolated image lines formed at each level of interpolation are formed from a plurality of temporally different lines. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification