Dictionary-free MR parameter inference for fingerprinting reconstruction

摘要

A method of generating Magnetic Resonance (MR) parameter maps includes creating one or more parameter maps, each respective parameter map comprising initial parameter values associated with one of a plurality of MR parameters. A dynamical update process is performed over a plurality of time points. The dynamical update process performed at each respective time point includes applying a randomized pulse sequence to subject using an MR scanner to acquire a k-space dataset. This randomized pulse sequence is configured to excite a distinct range of values associated with the plurality of MR parameters. The dynamical update process further includes applying a reconstruction process to the k-space dataset to generate an image and using a tracking process to update the one or more parameter maps based on the randomized pulse sequence and the image.

主权项

1. A method of generating Magnetic Resonance (MR) parameter maps, the method comprising:
creating one or more parameter maps, each respective parameter map comprising initial parameter values associated with one of a plurality of MR parameters; performing a dynamical update process over a plurality of time points, wherein the dynamical update process performed at each respective time point comprises:
applying a randomized pulse sequence to subject using an MR scanner to acquire a k-space dataset, wherein the randomized pulse sequence is configured to excite a distinct range of values associated with the plurality of MR parameters;applying a reconstruction process to the k-space dataset to generate an image; andusing a tracking process to update the one or more parameter maps based on the randomized pulse sequence and the image.