You can find the matlab code referred to below at
http://eeg.sourceforge.net - sorry the message always bounces when sent with
attachments, even fairly small ones.
----- Original Message -----
From: "Darren Weber" <[log in to unmask]>
To: "FSL - FMRIB's Software Library" <[log in to unmask]>
Sent: Monday, August 12, 2002 9:33 AM
Subject: Re: [FSL] Which analyze fields to use for orientation information?
>
> Hi Erik,
>
> please find attached some matlab functions to read and display Analyze
> files. These were developed after reading over the FSL code to start
with -
> thanks to the FSL team for releasing source code under GPL...
>
> The matlab code contains some documentation/notes about the header in the
> avw_read_hdr.m file, both from web sources and from a discussion with
> Analyze tech support. In particular, it describes how the Analyze
software
> uses the *history orient* field to specify the orientation of the volume
and
> effectively the order of x,y,z indices into the image matrix. The
> avw_view_hdr will display *all* fields of the header. This might be of
some
> use to you.
>
> Mark is absolutely right about different packages using or not using
> optional fields. There are some essentials, like pixdim, but it is a
wonder
> the history orient field is not essential, as it could take care of many
> orientation problems.
>
> Kind regards, Darren
>
>
>
>
> ----- Original Message -----
> From: "Erik-Jan Vlieger" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, August 09, 2002 5:44 PM
> Subject: Re: [FSL] Which analyze fields to use for orientation
information?
>
>
> > I would also question whether there would be *no* movement at all.
> > Some small movement (say 0.5mm) could easily occur, in which case it
would
> > be better to run some registration - wouldn't it?
>
> I know that the program BrainVoyager *only* uses this initiall reslice
> matrix
> for registration.
>
> EJ
>
>
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