Hi,
Sorry, what I meant was that the pixel value range for your data is outside
the range for (wrapped) phase values on a GE scanner ,which I presumed you
used from your previous message (you said "(acquire on ge mri)"). I wonder
if the image you are using as a phase image is a phase image, or a real or
imaginary image. If you use avwmaths -R, you would expect the output to be
in the range around -3140 -> +3140. If you have values in the range -3458 ->
12503, then either the images have been phase unwrapped, or they are not
phase images.
If it was a GE scanner, what was the value of rhrcctrl?
Dave
On 22/3/07 14:09, "mathieu LOUPPE" <[log in to unmask]> wrote:
> Hi dave,
>
> Thanks for your answer.
> my phase is a datatype 4.
> So i do avwmaths_32R in order to put it in integer(datatype 16).
> To have my phase in rad i do: avwmaths_32R myphase -mul pi -div 32767
>
> So after it my phase range is -0,116490 +0,920320.
> I hope there is no mistake??
>
> Thanks. Mathieu LOUPPE
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