Diffusion-tensor MR imaging at 1.5 and 3.0 T: initial observations.
Diffusion-tensor MR imaging was compared at 1.5 and 3.0 T. With sufficient signal-to-noise ratio, we found no differences in fractional anisotropy. With a 40% higher signal-to-noise ratio at 3.0 T, higher resolution could be obtained without introduction of noise-related errors, albeit at the cost of increased geometric distortions caused by 3.0-T magnetic field inhomogeneities.
Hunsche
S
S
Department of Neuroradiology, Johannes-Gutenberg University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany. hunsche@mail.uni-mainz.de
Moseley
M E
ME
Stoeter
P
P
Hedehus
M
M
D000328:Adult; D001921:Brain / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D019047:Phantoms, Imaging