Caixia Hu1,2, Jens H. Jensen1,
Casian
1Radiology, New York University School of
Medicine, New York, NY, United States; 2Center for Advanced Brain
Imaging, Nathan S. Kline Institute, Orangeburg, NY, United States
The
magnetic field correlation is theoretically predicted to scale as the square
of the applied field. This was verified experimentally in brain for two
subjects by scanning them at 1.5T and 3T. The magnetic field correlation was
estimated by using a recently proposed MRI method based on asymmetric spin
echoes. The consistency of the experimental results with the theoretical
prediction constitutes an important validation for the imaging method and
helps to justify its application at clinical field levels. Magnetic field
correlation can be of interest for studying brain iron changes associated
with neuropathologies, such as Alzheimers disease and multiple sclerosis.