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Abstract #0416

A Hybrid Diffusion Imaging Atlas in Q-space

Thijs Dhollander1,2, Wim Van Hecke1,3, Frederik Maes1,2, Stefan Sunaert1,3, Paul Suetens1,2

1Medical Imaging Research Center (MIRC), K.U.Leuven, Leuven, Belgium; 2Department of Electrical Engineering (ESAT), K.U.Leuven, Leuven, Belgium; 3Department of Radiology, University Hospitals of the K.U.Leuven, Leuven, Belgium

The number of atlas construction methods for diffusion weighted imaging is at least equal to the number of possible models which can be reconstructed from the original data in q-space. Therefore, we aim at constructing an atlas before the reconstruction of any of these models: a hybrid diffusion imaging atlas containing signal functions for multiple shells of q-space. In this work, we show how this can be achieved by creating such an atlas (containing signal functions for b = 700, 1000, 2800) and reconstructing some possible models of diffusion (diffusion tensor and fiber orientation distribution function) from the result.