System and method of parallel imaging with calibration to a virtual coil
AssigneeGeneral Electric Company
InventorsAnja C. S. Brau, Philip James Beatty
Life of this patent
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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.
Claims30
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.
A method for generating a magnetic resonance (MR) image comprising:
- acquiring calibration data using each of a plurality of RF source coils in a magnetic resonance imaging system;
- 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 using 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;
- reconstructing an image based on the complete MR data set for the virtual coil;
- and
- displaying the image on a display device.
A non-transitory computer readable storage medium having a program for performing a method for generating a magnetic resonance MR image, the computer readable storage medium comprising:
- program code for accessing MR data of an imaging subject acquired from each of at least two RF source coils;
- program code for generating MR data for a virtual coil;
- program code for determining 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;
- program code for generating 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
- program code for reconstructing an image based on the complete MR data set for the virtual coil.
A method for generating a magnetic resonance (MR) image comprising:
- acquiring calibration data using each of a plurality of RF source coils in a magnetic resonance imaging system;
- 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;
- reconstructing an image based on the complete MR data set for the virtual coil;
- and
- displaying the image on a display device.
Dependencies are inferred from the claim text.