Artifact elimination in time-gated anatomical imaging
First Claim
1. A computer implemented method for anatomical imaging, comprising:
- a) acquiring image data representative of three-dimensional, individually-continuous volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein, for a pair of spatially consecutive ones of said volume segments, respective sequences of scan lines traversing said ones, said acquiring pair-wise mirror-images said sequences to minimize an occurrence of motion artifacts throughout the image volume; and
b) combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume.
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Abstract
A method for anatomical imaging includes acquiring image data representative of three-dimensional volume segments of an image volume of interest in a subject. The image data are acquired in synchronism with corresponding physiological cycles of the subject. Each volume segment contains image data distributed in three dimensions. Acquiring image data includes selecting a sequence of scan lines for each respective volume segment configured to minimize an occurrence of motion artifacts throughout the image volume. The image data representative of the volume segments is combined to produce a representation of a three-dimensional anatomical image of the image volume.
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Citations
31 Claims
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1. A computer implemented method for anatomical imaging, comprising:
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a) acquiring image data representative of three-dimensional, individually-continuous volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein, for a pair of spatially consecutive ones of said volume segments, respective sequences of scan lines traversing said ones, said acquiring pair-wise mirror-images said sequences to minimize an occurrence of motion artifacts throughout the image volume; and b) combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for anatomical imaging, comprising:
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an acquisition unit configured for acquiring image data representative of three-dimensional, individually-continuous volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein, for a pair of spatially consecutive ones of said volume segments, respective sequences of scan lines traversing said ones, said acquiring pair-wise mirror-images said sequences to minimize an occurrence of motion artifacts throughout the image volume; and a controller configured for combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer implemented method for anatomical imaging, comprising:
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a) acquiring image data representative of three-dimensional volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein acquiring image data includes selecting a sequence of scan lines for each respective volume segment configured to minimize an occurrence of mod on artifacts throughout the image volume; and b) combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume, wherein acquiring image data representative of a first volume segment includes a first sequence of scan lines and acquiring image data representative of a second volume segment includes a second sequence of scan lines, said computer implemented method further comprising selecting the first and second sequences of scan lines from the group consisting of; a) a reverse acquisition order between the first sequence and second sequence of scan lines configured to provide a cross-boundary time alignment between adjacent volume segments, b) a boundary-to-center acquisition order configured to provide a cross-boundary time alignment between adjacent volume segments, and c) a center-to-boundary acquisition order configured to provide a cross-boundary time alignment between adjacent volume segments.
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21. A system for anatomical imaging, comprising:
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an acquisition unit for acquiring image data representative of three-dimensional volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein acquiring image data includes selecting a sequence of scan lines for each respective volume segment configured to minimize an occurrence of motion artifacts throughout the image volume; and a controller for combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume, wherein acquiring image data representative of a first volume segment includes a first sequence of scan lines and acquiring image data representative of a second volume segment includes a second sequence of scan lines, wherein the first and second sequences of scan lines is selected from the group consisting of; a) a reverse acquisition order between the first sequence and second sequence of scan lines configured to provide a cross-boundary time alignment between adjacent volume segments, b) a boundary-to-center acquisition order configured to provide a cross-boundary time alignment between adjacent volume segments, and c) a center-to-boundary acquisition order configured to provide a cross-boundary time alignment between adjacent volume segments.
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22. Apparatus for medical ultrasound imaging, comprising:
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a transducer comprising an array of transducer elements; a transmitter for transmitting ultrasound energy with said transducer into an image volume of interest in a subject'"'"'s body as a plurality of transmit beams; a receiver for receiving ultrasound echoes with said transducer from the image volume in response to the ultrasound energy and for generating received signals representative of the received ultrasound echoes; a receive beamformer for processing the received signals to form at least one receive beam for each of the transmit beams and to generate image data representative of the ultrasound echos in the receive beam; a device coupled tote subject for generating a signal representative of a physiological cycle of the subject; a controller responsive to the physiological signal for controlling said transmitter and said receive beamformer to acquire image data representative of three-dimensional, individually-continuous volume segments of the image volume in synchronism with corresponding physiological cycles of the subject, each of the volume segments containing image data distributed in three dimensions, wherein, for a pair of spatially-consecutive ones of said volume segments, respective sequences of scan lines traversing said ones, said acquiring pair-wise mirror-images said sequences to minimize an occurrence of motion artifacts throughout the image volume; and a circuit for combining the image data representative of the volume segments to produce a representation of a three-dimensional ultrasound image of the image volume. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A computer implemented method for anatomical imaging, comprising:
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a) acquiring image data representative of three-dimensional, mutually-interleaved volume segments of an image volume of interest in a subject, in synchronism with corresponding physiological cycles of the subject each of the volume segments containing image data distributed in three dimensions, wherein acquiring image data includes selecting a sequence of scan lines for each respective volume segment tat traverses said volume segment, said selecting being performed such tat said sequences are spatially staggered within said image volume, said acquiring being configured to minimize an occurrence of motion artifacts throughout the image volume; and b) combining the image data representative of the volume segments to produce a representation of a three-dimensional anatomical image of the image volume. - View Dependent Claims (29, 30, 31)
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Specification