Abstract: Systems, methods, apparatus, and other embodiments associated with reducing imaging acquisition time are described. One example method includes accessing an under-sampled data set and a library of previously acquired data sets. The method includes producing an approximation of the under-sampled data set by transforming data stored in the library. The method includes producing a sparsified data set from the approximation and the under-sampled data set and then reconstructing the sparsified data set into a sparse image using a reconstruction technique configured to reconstruct sparse data. The method includes producing a fully-sampled approximation of the under-sampled data set and producing a final reconstructed image from the sparse image and the fully sampled approximation.

Abstract: The present invention relates to systems and methods for generating high resolution MR images of the fractional amount or percentage of fat content in an imaged object. In particular, the present invention relates to systems and methods for obtaining high resolution MR images of fat content with reduced NMR relaxation effects. Moreover, the present invention relates to systems and methods for obtaining high resolution MR images of fat content with reduced fat-percentage ambiguity. Furthermore, the present invention relates to systems and methods for diagnostic, and prognostic imaging where knowledge of fat content within tissues, organs, and lesions is beneficial to improve diagnostic accuracy, aid in risk assessment of future disease, and aid in assessment of therapeutic intervention.