This is not a bug, instead it is a viewing option. that is to say, some
image viewing software use "radilogical" display and others might use
"neurological" display.the way you look at the image matters and
explains the flip that you experienced. take a look at this for better
the orientation is embedded in the header and spm extracts it
correctly.don't pre-flip your images unless you know how to deal with
Direction Cosine Matirx.
On Tue, 2010-05-25 at 09:05 -0700, Stephen Paisey wrote:
> Dear Developers and users,
> We have imaged rats with a brain lesion on the right hand side on a Bruker scanner using Paravision 5.0. I have then used analyze 9.0 to convert the raw bruker files into and img/hdr file pair. The images in analyze 9.0 are displayed the correct way around but when I load them in spm5 (i am using this version for its compatibility with the spmmouse extension) i get an image which has been left right inverted i.e. the lesion is now on the left side of the brain. I can get around this by flipping the image the wrong way around before i read it into spm but this is clearly a bug which could lead to totally wrong experimental results. It is lucky i had non symmetrical rats otherwise i probably wouldn't have spotted the error.
> Best Regards