Radial q-space sampling for DSI.

ABSTRACT:

Purpose

Diffusion spectrum imaging (DSI) has been shown to be an effective tool for noninvasively depicting the anatomical details of brain microstructure. Existing implementations of DSI sample the diffusion encoding space using a rectangular grid. Here we present a different implementation of DSI whereby a radially symmetric q-space sampling scheme for DSI is used to improve the angular resolution and accuracy of the reconstructed orientation distribution functions.

Methods

Q-space is sampled by acquiring several q-space samples along a number of radial lines. Each of these radial lines in q-space is analytically connected to a value of the orientation distribution functions at the same angular location by the Fourier slice theorem.

Results

Computer simulations and

SUBMITTER: Baete SH 

PROVIDER: S-EPMC4788992 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature