Maarten J. Versluis1,2, Andrew G. Webb1,2, Mark A. van Buchem1,2, Matthias J P van Osch1,2
1Radiology, Leiden University Medical Center, Leiden, Netherlands; 2C.J. Gorter Center for high field MRI, Leiden University Medical Center, Leiden, Netherlands
Magnetic field correlation (MFC) imaging was implemented to quantitatively measure magnetic field inhomogeneities at 7 T. The feasibility of the technique was shown by comparing 3 T and 7 T data of healthy volunteers for different brain regions. MFC measurements were performed at multiple echo times to differentiate between macroscopic and microscopic field inhomogeneities. In vivo MFC imaging at 7 T was found to be more sensitive than at 3 T and it was possible to differentiate between brain regions with different scales of inhomogeneities.