System And Method Of Parallel Imaging With Calibration To A Virtual Coil
First Claim
1. A magnetic resonance imaging (MRI) system comprising:
- a resonance assembly comprising a plurality of gradient coils and a plurality of RF source coils;
an RF transceiver system coupled to the plurality of RF source coils and configured to receive magnetic resonance (MR) data from the plurality of RF source coils; and
a controller programmed to;
receive MR data of an imaging subject from each of the plurality of RF source coils;
generate MR data for a virtual coil;
determine a set of weights based on the MR data received from each RF source coil and the MR data generated for the virtual coil;
generate a complete MR data set for the virtual coil based only on at least a portion of the MR data from at least two of the RF source coils and the set of weights; and
reconstruct an image based on the complete MR data set for the virtual coil.
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Accused Products
Abstract
A method for generating a magnetic resonance (MR) image includes acquiring calibration data from each of a plurality of RF source coils. Calibration data for a virtual coil is generated based on the calibration data from the plurality of RF source coils and a set of synthesis weights is generated based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil. Accelerated MR data is acquired from each of the plurality of RF source coils. An image can be reconstructed based on an application of the set of synthesis weights to the accelerated MR data from the plurality of RF source coils.
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Citations
30 Claims
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1. A magnetic resonance imaging (MRI) system comprising:
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a resonance assembly comprising a plurality of gradient coils and a plurality of RF source coils; an RF transceiver system coupled to the plurality of RF source coils and configured to receive magnetic resonance (MR) data from the plurality of RF source coils; and a controller programmed to; receive MR data of an imaging subject from each of the plurality of RF source coils; generate MR data for a virtual coil; determine a set of weights based on the MR data received from each RF source coil and the MR data generated for the virtual coil; generate a complete MR data set for the virtual coil based only on at least a portion of the MR data from at least two of the RF source coils and the set of weights; and reconstruct an image based on the complete MR data set for the virtual coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for generating a magnetic resonance (MR) image comprising:
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acquiring calibration data from each of a plurality of RF source coils; generating calibration data for a virtual coil based on the calibration data from the plurality of RF source coils; generating a set of synthesis weights based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil; acquiring accelerated MR data from each of the plurality of RF source coils; generating a complete MR data set for the virtual coil based only on the accelerated MR data from at least two of the RF source coils and the set of synthesis weights; and reconstructing an image based on the complete MR data set for the virtual coil. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A computer readable storage medium having a program stored thereon that when executed by a processor causes the processor to:
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access MR data of an imaging subject acquired from each of at least two RF source coils; generate MR data for a virtual coil; determine a set of linear combination weights based on the MR data from the at least two RF source coils and the MR data for the virtual coil; generate a complete MR data set for the virtual coil based only on the MR data from the at least two RF source coils and the set of linear combination weights; and reconstruct an image based on the complete MR data set for the virtual coil. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method for generating a magnetic resonance (MR) image comprising:
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acquiring calibration data from each of a plurality of RF source coils; generating calibration data for a virtual coil based on the calibration data from the plurality of RF source coils; generating a set of synthesis weights based on the calibration data from the plurality of RF source coils and the calibration data for the virtual coil; accessing accelerated MR data associated with the plurality of RF source coils; generating a complete MR data set for the virtual coil based only on the accelerated MR data associated with the plurality of RF source coils and the set of synthesis weights; and reconstructing an image based on the complete MR data set for the virtual coil. - View Dependent Claims (27, 28, 29, 30)
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Specification