Corrected sensitivity-encoded magnetic resonance imaging

摘要

The present invention provides a magnetic resonance imaging system 200, 300, 400 that includes radio frequency systems 216, 214 that include a plurality of coil elements 214 for acquiring magnetic resonance data 264. The magnetic resonance imaging system further includes a memory 250 for storing machine-executable instructions 260 and pulse sequence commands 262. The pulse sequence command is configured to control the magnetic resonance imaging system to acquire the magnetic resonance data according to a SENSE imaging protocol. The magnetic resonance imaging system further includes a processor 244 for controlling the magnetic resonance imaging system. Execution of the machine-executable instructions causes the processor to control the magnetic resonance imaging system to obtain the magnetic resonance data using the pulse sequence command (500), and the loopback from the magnetic resonance data. Reconstructing the set of magnetic resonance images 266 (502), calculating the voxel deformation map 270 from the magnetic field inhomogeneity map (504), and at least partially using the coil sensitivity matrix 272 for the plurality of coil elements A set of expansion matrices 274, wherein the set of expansion matrices includes at least one modified expansion matrix, the at least one modified expansion matrix being the coil sensitivity matrix. And the folded magnetic resonance calculated at least in part using the voxel deformation map Using a set and the set of deployment matrix image, it calculates the magnetic resonance image data 276 undistorted (508).