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Nuclear Magnetic Resonance (NMR) Fingerprinting With Singular Value Decomposition (SVD) Compression
Nuclear Magnetic Resonance (NMR) Fingerprinting With Singular Value Decomposition (SVD) Compression
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机译：奇异值分解（SVD）压缩的核磁共振（NMR）指纹
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摘要
Apparatus, methods, and other embodiments associated with NMR fingerprinting are described. One example NMR apparatus includes an NMR logic that repetitively and variably samples a (k, t, E) space associated with an object to acquire a set of NMR signals that are associated with different points in the (k, t, E) space. Sampling is performed with t and/or E varying in a non-constant way. The varying parameters may include flip angle, echo time, RF amplitude, and other parameters. The NMR apparatus may also include a signal logic that produces an NMR signal evolution from the NMR signals, and a characterization logic that characterizes a resonant species in the object as a result of comparing acquired signals to reference signals. The reference signals may be stored in a dictionary. Singular value decomposition may be applied to the dictionary and the acquired signals before comparing the acquired signals to the reference signals.
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