Abstract #4550
Effect of scanner and head coil on diffusion MRI measures of the brain
Matthan W.A. Caan 1 , Michiel B. de Ruiter 1 , Liesbeth Reneman 1 , and Aart J. Nederveen 1
1
Radiology, Academic Medical Center,
Amsterdam, Netherlands
The goal of this study was to compare diffusion
parameters between three scanners of one vendor with the
head-coils used in daily practice on the particular
scanners. Of seven subjects, diffusion weighted MRI data
were acquired on 3.0 Tesla Philips Intera, Achieva and
Ingenia scanners. Signal to Noise Ratio (SNR), Mean
Diffusivity (MD) and Fractional Anisotropy (FA) maps
were compared. Inter-scanner differences were three
times as large as intra-scanner differences. SNR varied
up to 20% between scanners, was positively associated
with MD and negatively with FA. Differences in MD and FA
up to 7% are in agreement with literature.
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