System and method for generating a magnetic resonance fingerprinting dictionary using semi-supervised learning
AssigneeCase Western Reserve University
InventorsMark A. Griswold, Mingrui Yang
Life of this patent
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Abstract
A method for creating a dictionary for a magnetic resonance fingerprinting (MRF) reconstruction includes training a semi-supervised learning system based on at least a set of MRF data and a set of control variables and generating a plurality of signal evolutions using the trained semi-supervised learning system. The method also includes generating an MRF dictionary using the plurality of signal evolutions generated using the trained semi-supervised learning system and storing the MRF dictionary in a memory. In one embodiment, the semi-supervised learning system is a MRF generative adversarial network (GAN).
Claims19
A method for creating a dictionary for a magnetic resonance fingerprinting (MRF) reconstruction comprising:
- training a semi-supervised learning system based on at least a set of MRF data and a set of control variables;
- generating a plurality of signal evolutions using the trained semi-supervised learning system;
- generating an MRF dictionary using the plurality of signal evolutions generated using the trained semi-supervised learning system;
- and
- storing the MRF dictionary in a memory.
A method for performing magnetic resonance fingerprinting comprising:
- accessing a MRF dictionary using an MRI system, the MRF dictionary generated using a semi-supervised learning system;
- acquiring MRF data from a tissue in a region of interest in a subject using the MRI system;
- comparing the MRF data to the MRF dictionary to identify at least one parameter of the MRF data;
- and
- generating a report indicating a value of the at least one parameter of the MRF data.
A magnetic resonance fingerprinting (MRF) system comprising:
- a magnet system configured to generate a polarizing magnetic field about at least a portion of a subject;
- a magnetic gradient system including a plurality of magnetic gradient coils configured to apply at least one magnetic gradient field to the polarizing magnetic field;
- a radio frequency (RF) system configured to apply an RF field to the subject and to receive magnetic resonance signals from the subject using a coil array;
- and
- a computer system programmed to:
- access a MRF dictionary, the MRF dictionary generated using a semi-supervised learning system;
- acquire MRF data from a tissue in a region of interest in a subject;
- compare the MRF data to the MRF dictionary to identify at least one parameter of the MRF data;
- and
- generate a report indicating the at least one parameter of the MRF data.
Dependencies are inferred from the claim text.