epi_3d.m

Diffusion weighted 3D echo planar imaging pulse sequence. This sequence must be called from the imaging.m context, which would provide H,R,K,G, and F.

Syntax

    fid=epi_3d(spin_system,parameters,H,R,K,G,F)

Arguments

 parameters.ss_grad_amp   -  the amplitude of slice selection 
                             gradient,T/m

 parameters.ss_grad_dur   -  the duration of the slice selection 
                             gradient, seconds 

 parameters.image_size    -  number of points in each dimension of
                             the resulting image

 parameters.pe_grad_amp   -  phase encoding gradient amplitude, T/m
 
 parameters.ro_grad_amp   -  readout gradient amplitude, T/m

 parameters.grad_dur      -  the duration of the gradients, seconds

 parameters.t_echo        -  echo time after slice selection, seconds

 parameters.diff_g_amp    -  [optional] a vector of diffusion gra-
                             dient pair amplitudes in X,Y (T/m) to
                             be active during the echo time

Outputs

    fid - k-space representation of the image 

See also

Imaging module

Version 2.9, authors: Ilya Kuprov, Ahmed Allami