Patent ID: 11860256
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for producing a streak-suppressed magnetic resonance (MR) image of a subject, the method comprising:
generating an interference correlation matrix from M coil images, each of the M coil images having been derived from a respective one of M MR signals, each of the M MR signals having been detected by a respective one of a phased array of M coils of magnetic resonance imaging scanner;
producing eigenvectors of the interference correlation matrix, the eigenvectors including a plurality of subspace eigenvectors that span an interference subspace and a plurality of null-space eigenvectors that span an interference null space;
determining, from the plurality of subspace-eigenvectors, a projection matrix of the interference null space; and
generating, from N coil images derived from a respective one of N MR signals, each detected by a respective one of the phased array of M coils, N streak-suppressed multi-coil images by either (i) preprocessing the N coil images with the projection matrix and applying an image-reconstruction technique to each of the resultant N preprocessed coil images, or (ii) applying an image-reconstruction technique to each of the N coil images to obtain N reconstructed coil images and post-processing the resultant N reconstructed coil images with the projection matrix;
each of M and N being a positive integer.