Magnetic resonance apparatus and method for prospective motion correction
First Claim
1. A method far magnetic resonance imaging using prospective motion correction, comprising:
- operating a magnetic resonance scanner to acquire a first set of magnetic resonance data that maps a first sub-region of a region of interest in a subject, said region of interest exhibiting motion;
providing said first set of magnetic resonance data to a computer and, in said computer, automatically determining motion correction parameters by comparing said first set of magnetic resonance data with reference magnetic resonance data that map said region of interest;
operating said magnetic resonance scanner to acquire a second set of magnetic resonance data that maps a second sub-region of said region of interest using prospective motion correction based on said motion correction parameters; and
in said computer, generating a magnetic resonance image from a combination of at least said first set of magnetic resonance data and said second set of magnetic resonance data, and making said magnetic resonance image available in electronic form, as a data file, from said computer.
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0 Petitions
Accused Products
Abstract
For prospective motion correction in magnetic resonance imaging, first magnetic resonance data that map a first sub-region of a region of interest are acquired. Motion correction parameters are determined based on a comparison of at least the first magnetic resonance data with reference magnetic resonance data that map the region of interest. Second magnetic resonance data that map a second sub-region of the region of interest are determined using prospective motion correction based on the motion correction parameters. A magnetic resonance image is determined based on the first magnetic resonance data and based on the second magnetic resonance data.
3 Citations
15 Claims
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1. A method far magnetic resonance imaging using prospective motion correction, comprising:
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operating a magnetic resonance scanner to acquire a first set of magnetic resonance data that maps a first sub-region of a region of interest in a subject, said region of interest exhibiting motion; providing said first set of magnetic resonance data to a computer and, in said computer, automatically determining motion correction parameters by comparing said first set of magnetic resonance data with reference magnetic resonance data that map said region of interest; operating said magnetic resonance scanner to acquire a second set of magnetic resonance data that maps a second sub-region of said region of interest using prospective motion correction based on said motion correction parameters; and in said computer, generating a magnetic resonance image from a combination of at least said first set of magnetic resonance data and said second set of magnetic resonance data, and making said magnetic resonance image available in electronic form, as a data file, from said computer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A magnetic resonance apparatus comprising:
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a magnetic resonance scanner; a control computer configured to operate said magnetic resonance scanner to acquire a first set of magnetic resonance data that maps a first sub-region of a region of interest in a subject, said region of interest exhibiting motion; an image reconstruction computer, provided with said first set of magnetic resonance data, said image reconstruction computer being configured to automatically determine motion correction parameters by comparing said first set of magnetic resonance data with reference magnetic resonance data that map said region of interest; said control computer being configured to operate said magnetic resonance scanner to acquire a second set of magnetic resonance data that maps a second sub-region of said region of interest using prospective motion correction based on said motion correction parameters; and said image reconstruction computer being configured to generate a magnetic resonance image from a combination of at least said first set of magnetic resonance data and to make said second set of magnetic resonance data, and making said magnetic resonance image available in electronic form, as a data file, from said computer.
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Specification