I just have echo number that I got from scanner which it states the Echo number like this EC : 1/1 250 kHz. What does it means? I also have tried to ask the technician of scanner, she said there
is only EC, but there is no stated echo spacing. How do I can get the readout time in order to make acqparams.txt if there is no echo spacing stated? Another question, is it we need one or two rows of acquisition parameters in acqparams.txt? I have read in
a blog, they said we need two rows of acquisition parameters, first row is for A>>P and second row is for P<<A. Is it true? What if my scanner states that following below :
qform_xorient Right-to-Left
qform_yorient Posterior-to-Anterior
qform_zorient Inferior-to-Superior
sform_xorient Right-to-Left
sform_yorient Posterior-to-Anterior
sform_zorient Inferior-to-Superior
How do we create acquisition direction for this phase encode?
Thank you for your helps.
From: FSL - FMRIB's Software Library <[log in to unmask]>
On Behalf Of Divesh Thaploo
Sent: Monday, 22 April, 2019 10:21 PM
To: [log in to unmask]
Subject: Re: [FSL] Acquisition parameters in correcting eddy current in FDT diffusion
For doing this you require certain parameters like Echo spacing, for GE and Philips it will be Echo train length/PE steps. You will also need acquisition direction A>>P or P>>A. Then you can make acqparams.txt.
On Mon 22 Apr, 2019, 10:35 AM Siti Nor Fatihah Binti Salbinih @ Salbini, <[log in to unmask]> wrote: