Invention Grant
- Patent Title: K-space sample density compensation for magnetic resonance image reconstruction
- Patent Title (中): 磁共振图像重建的K空间样本密度补偿
-
Application No.: US12743030Application Date: 2008-11-21
-
Publication No.: US08473028B2Publication Date: 2013-06-25
- Inventor: Dimitrios Mitsouras , Frank J. Rybicki , Robert V. Mulkern
- Applicant: Dimitrios Mitsouras , Frank J. Rybicki , Robert V. Mulkern
- Applicant Address: US MA Boston US MA Boston
- Assignee: The Brigham and Women's Hospital,Children's Medical Center Corporation
- Current Assignee: The Brigham and Women's Hospital,Children's Medical Center Corporation
- Current Assignee Address: US MA Boston US MA Boston
- Agency: Quarles & Brady, LLP
- International Application: PCT/US2008/084397 WO 20081121
- International Announcement: WO2009/067691 WO 20090528
- Main IPC: A61B5/055
- IPC: A61B5/055 ; G06K9/00

Abstract:
The present invention provides a method for producing density-compensated MR images having improved signal-to-noise ratio and with reduced computational burden. The method includes sampling MR data using a rotationally symmetric acquisition trajectory, generating a cross-correlation matrix, and applying a discreet Fourier transform (DFT) to the acquired MR data and the cross correlation matrix. The method further includes employing the transformed MR data and transformed cross-correlation matrix in a linear system to produce a set of density-compensated transformed MR data, which may transformed into density compensated MR data by application of an inverse DFT. The density compensated MR data may be reconstructed by a variety of techniques to produce density compensated images.
Public/Granted literature
- US20100305424A1 K-SPACE SAMPLE DENSITY COMPENSATION FOR MAGNETIC RESONANCE IMAGE RECONSTRUCTION Public/Granted day:2010-12-02
Information query