Diffusion-tensor MR imaging at 1.5 and 3.0 T: initial observations.
cross_sectional · Level IV
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Abstract
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.
Medical subject headings
- Brain
- Magnetic Resonance Imaging
- Phantoms, Imaging