Patching Cardiac and Head Motion Artefacts in Diffusion Imaging
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چکیده
Figure 2. Cardiac artefacts in grey matter voxels. Fractional anisotropy (FA) estimates (top row) and corresponding artefact detection scores (bottom row) for different artefact magnitude (left) and frequency (right). Note the overall small performance drop of GMM and LRESTORE, which is due to the early hyperbolic decay of the weighting function, resulting in non-zero false-positive detection percentages (lower panels). The small performance drop for intermediate artefact magnitudes can be attributed to true-positive scores that have not yet reached 100%. Akin results were found for white matter voxels, MD and PDD (not shown). PATCHING CARDIAC AND HEAD MOTION ARTEFACTS IN DIFFUSION IMAGING
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تاریخ انتشار 2008