Magnetic Resonance Fingerprinting Optimization in Magnetic Resonance Imaging
AssigneeSiemens Healthcare GmbH
InventorsChristian Alexander Braun, Mariappan S. Nadar, Xiao Chen, Boris Mailhe
Life of this patent
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Abstract
For determining a configuration for a MR scanner using MRF, MRF is optimized using a model of acquisition and reconstruction together. The effects of under sampling and reconstruction are included in the model being optimized with the sequence. A spatial distribution of response is used in the MRF optimization. An added transformation may be included to convert the fingerprint into a domain for noise removal and/or more direct parameter estimation without the dictionary. Artificial intelligence may be used to alter and/or select the type of optimization or optimization settings and/or to optimize.
Claims20
A method for determining a configuration for a magnetic resonance scanner using magnetic resonance fingerprinting, the method comprising:
- generating a first image fingerprint from magnetic resonance corresponding to a first sequence and a plurality of ground truth values of magnetic resonance output parameters;
- transforming the first image fingerprint to k-space;
- applying a first sampling pattern to the transformed first image fingerprint;
- reconstructing first values of the magnetic resonance output parameters from results of the applying of the first sampling pattern, the reconstructing using a first reconstruction setting;
- scoring the first values with respect to the ground truth values;
- optimizing the scoring based on repetition of the generating with different sequences than the first sequence, transforming, applying with different sampling patterns than the first sampling pattern, and reconstructing with different reconstructing settings;
- selecting a magnetic resonance fingerprinting sequence from the first and different sequences, a magnetic resonance fingerprinting sampling pattern from the first and different sampling patterns, and a magnetic resonance fingerprinting reconstruct setting from the first and different reconstruction settings;
- and
- providing the selected magnetic resonance fingerprinting sequence, sampling pattern, and reconstruction setting for the magnetic resonance scanner.
A method for determining a configuration for a magnetic resonance scanner using magnetic resonance fingerprinting, the method comprising:
- optimizing the magnetic resonance fingerprinting with a model including a scan sequence and a reconstruction from fingerprint matching to a dictionary, a score for the optimizing being based on a reconstruction map of a plurality of locations;
- providing a configuration as optimized to the magnetic resonance scanner.
Dependencies are inferred from the claim text.