Body-CoilL-Constrained Reconstruction of Undersampled Magnetic Resonance Imaging Data

摘要

Systems and methods for reconstructing images from data acquired with a magnetic resonance imaging (“MRI”) system are provided. Data are acquired using both a body coil and a multichannel matrix coil. The body coil measurements can be used to constrain the solution space for the image reconstruction from the data acquired using the multichannel matrix coil. The resulting images have the flat sensitivity profile of the body coil, but signal-to-noise ration and undersampling-acceleration gained from a matrix coil.

主权项

1. A method for producing an image of a subject using a magnetic resonance imaging (MRI) system, the steps of the method comprising:
(a) acquiring a first dataset from a subject using a body radio frequency (RF) coil of an MRI system; (b) acquiring a second dataset from a subject using a matrix RF coil of the MRI system; (c) jointly estimating from the acquired first and second datasets:
a signal weighted by a sensitivity of the body RF coil;a kernel for each channel in the matrix coil; and and (d) reconstructing an image of the subject based on the signal that is jointly-estimated in step (c).