Systems and methods for magnetic resonance imaging
First Claim
1. A system for magnetic resonance imaging (MRI), comprising:
- at least one storage device storing executable instructions, andat least one processor in communication with the at least one storage device, when executing the executable instructions, causing the system to;
obtain first image data of a first subject, the first image data indicating a first intensity distribution of a first magnetic field relative to at least one portion of the first subject;
obtain a target machine learning model that provides a mapping relationship between second intensity distributions of second magnetic fields and corresponding second susceptibility distributions associated with second subjects under the second magnetic fields;
generate a first susceptibility distribution associated with the first subject under the first magnetic field based on the target machine learning model and the first image data of the first subject; and
determine a target MR image of the at least one portion of the first subject based on the first susceptibility distribution associated with the first subject.
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Accused Products
Abstract
A method may include obtaining first image data of a first subject and obtaining a target machine learning model. The first image data may indicate a first intensity distribution of a first magnetic field relative to at least one portion of the first subject. The target machine learning model may provide a mapping relationship between second intensity distributions of second magnetic fields and corresponding second susceptibility distributions associated with second subjects under the second magnetic fields. The method may also include generating a first susceptibility distribution associated with the first subject under the first magnetic field based on the target machine learning model and the first image data. The method may further include determining a target MR image of the at least one portion of the first subject based on the first susceptibility distribution.
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Citations
20 Claims
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1. A system for magnetic resonance imaging (MRI), comprising:
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at least one storage device storing executable instructions, and at least one processor in communication with the at least one storage device, when executing the executable instructions, causing the system to; obtain first image data of a first subject, the first image data indicating a first intensity distribution of a first magnetic field relative to at least one portion of the first subject; obtain a target machine learning model that provides a mapping relationship between second intensity distributions of second magnetic fields and corresponding second susceptibility distributions associated with second subjects under the second magnetic fields; generate a first susceptibility distribution associated with the first subject under the first magnetic field based on the target machine learning model and the first image data of the first subject; and determine a target MR image of the at least one portion of the first subject based on the first susceptibility distribution associated with the first subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method implemented on a computing device including a storage device and at least one processor for magnetic resonance imaging, the method comprising:
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obtaining first image data of a first subject, the first image data indicating a first intensity distribution of a first magnetic field relative to at least one portion of the first subject; obtaining a target machine learning model that provides a mapping relationship between second intensity distributions of second magnetic fields and corresponding second susceptibility distributions associated with second subjects under the second magnetic fields; generating a first susceptibility distribution associated with the first subject under the first magnetic field based on the target machine learning model and the first image data of the first subject; and determining a target MR image of the at least one portion of the first subject based on the first susceptibility distribution associated with the first subject. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A non-transitory computer readable medium storing instructions, the instructions, when executed by at least one processor, causing the at least one processor to implement a method comprising:
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obtaining first image data of a first subject, the first image data indicating a first intensity distribution of a first magnetic field relative to at least one portion of the first subject; obtaining a target machine learning model that provides a mapping relationship between second intensity distributions of second magnetic fields and corresponding second susceptibility distributions associated with second subjects under the second magnetic fields; generating a first susceptibility distribution associated with the first subject under the first magnetic field based on the target machine learning model and the first image data of the first subject; and determining a target MR image of the at least one portion of the first subject based on the first susceptibility distribution associated with the first subject.
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Specification