Daniel Louis Polders1, Alexander Leemans2,
Johannes M. Hoogduin1,3, Jeroen Hendrikse1, Manus
Donahue4, Peter R. Luijten1
1Radiology, University Medical Center
Utrecht, Utrecht, Netherlands; 2Image Sciences Institute,
University Medical Center Utrecht, Utrecht, Netherlands; 3Rudolf
Magnus Institute of Neuroscience, University Medical Center Utrecht,
Netherlands; 4Department of Clinical Neurology, University of
Oxford, Oxford, United Kingdom
Diffusion
Tensor Imaging data acquired at increased field strength shows increased
Signal to Noise Ratio. This work compares the uncertainties of DTI-based
metrics when scanning at 1.5 3 and 7T. By scanning the same nine volunteers
at each field strength, and applying a wild bootstrap method to calculate the
uncertainty of the fitted tensors, it is shown that with increasing SNR, the
uncertainties for FA and the primary eigenvector decrease.