A Separable Approximation to DSI Deconvolution

Michael Paquette¹, Maxime Descoteaux²

The q-space truncation induce in the classical acquisition scheme of Diffusion Spectrum Imaging leads to a modified version of the diffusion propagator. That modification can be inverted by deconvolution methods. This work present a separable deconvolution approximation to get better propagator. Those better propagators leads to more physically meaningful diffusion space metric and sharper orientation distribution functions.