MOTION INFORMATION CAPTURE AND AUTOMATIC MOTION CORRECTION FOR IMAGING SYSTEMS
First Claim
1. A computer-implemented method for compensating for motion of a subject during a magnetic resonance imaging (MRI) scan of the subject, the method comprising:
- configuring one or more processors to perform an operation comprising;
receiving k-space data from the MRI scan of the subject, wherein the k-space data comprises frequency domain data for generating a graphical image of the subject, and wherein the frequency domain data includes a plurality of rows including a first row of data acquired at a first point in time during the MRI scan and a second row of data acquired at a second point in time during the MRI scan;
receiving motion information captured for the subject by a capturing technique during the MRI scan;
determining a translational motion of the subject between the first point in time and the second point in time based on the received motion information; and
reducing a search space for motion correction using the determined translational motion, wherein the search space includes a set of potentially occurring motions of the subject between the first point in time and the second point in time.
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Accused Products
Abstract
Systems, methods and articles of manufacture are disclosed for compensating for motion of a subject during an MRI scan of the subject. k-space data may be received from the MRI scan of the subject. Motion information may be received for the subject. Based on the received motion information, a translational motion of the subject may be determined between a first point in time and a second point in time. A search space for motion correction may be reduced using the determined change and an error margin of the capturing technique. A motion-compensated, graphical image of the subject may be generated using the reduced search space.
52 Citations
24 Claims
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1. A computer-implemented method for compensating for motion of a subject during a magnetic resonance imaging (MRI) scan of the subject, the method comprising:
configuring one or more processors to perform an operation comprising; receiving k-space data from the MRI scan of the subject, wherein the k-space data comprises frequency domain data for generating a graphical image of the subject, and wherein the frequency domain data includes a plurality of rows including a first row of data acquired at a first point in time during the MRI scan and a second row of data acquired at a second point in time during the MRI scan; receiving motion information captured for the subject by a capturing technique during the MRI scan; determining a translational motion of the subject between the first point in time and the second point in time based on the received motion information; and reducing a search space for motion correction using the determined translational motion, wherein the search space includes a set of potentially occurring motions of the subject between the first point in time and the second point in time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer readable storage medium containing a program which, when executed, performs an operation for compensating for motion of a subject during a magnetic resonance imaging (MRI) scan of the subject, the operation comprising:
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receiving k-space data from the MRI scan of the subject, wherein the k-space data comprises frequency domain data for generating a graphical image of the subject, and wherein the frequency domain data includes a plurality of rows including a first row of data acquired at a first point in time during the MRI scan and a second row of data acquired at a second point in time during the MRI scan; receiving motion information captured for the subject by a capturing technique during the MRI scan; determining a translational motion of the subject between the first point in time and the second point in time based on the received motion information; and reducing a search space for motion correction using the determined translational motion, wherein the search space includes a set of potentially occurring motions of the subject between the first point in time and the second point in time. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system, comprising:
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a processor; and a memory containing a program, which when executed by the processor is configured to perform an operation for compensating for motion of a subject during a magnetic resonance imaging (MRI) scan of the subject, the operation comprising; receiving k-space data from the MRI scan of the subject, wherein the k-space data comprises frequency domain data for generating a graphical image of the subject, and wherein the frequency domain data includes a plurality of rows including a first row of data acquired at a first point in time during the MRI scan and a second row of data acquired at a second point in time during the MRI scan; receiving motion information captured for the subject by a capturing technique during the MRI scan; determining a translational motion of the subject between the first point in time and the second point in time based on the received motion information; and reducing a search space for motion correction using the determined translational motion, wherein the search space includes a set of potentially occurring motions of the subject between the first point in time and the second point in time. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification