DICOM Convertion

Discussions
1

Hi,

I am interested in converting DICOM files of my MRI into a BrainVisa readable DIFTI (*.nii) files. I tried several converters, SPM8 or Brainstorm could read it, but BrainVisa did not.

Can somebody tell me which DICOM -> NIFTI converter works with BrainVisa?

Thanks a lot.

Norbert

2

Hi Norbert,

In my experience, the converter dcm2nii from the Mricron software gives good results:
http://www.mccauslandcenter.sc.edu/mricro/mricron/

If it doesn’t work, this is a question you should ask to the BrainVISA developers.

Cheers,
Francois

3

Dear Francois,

I tried this one. I will ask the BraiVisa team.
Thanks a lot for Your answer.

Norbert

4

Hi Francois,

I used the Mricron software to convert dcm to Anlalyze format (.hdr .img), but I have problems with the location with the electrodes, when I import chanel File, because the electrodes didn’t localize over the scalp, and I have to put the option “Right click > MRI Registration > Edit…”. I think that I have an error becuase I change the position of electrodes.

Thanks,

Federico

5

Hi Federico,
Can you please post screen captures of the alignment before and after your manual editions?
Thanks
Francois

6

Hi Francois,

The images before a manual edition are and .

The images after a manual edition (Right click > MRI Registration > Edit...") are and

Thanks

Federico

7

Are those EEG electrodes?
It looks that you could bring them a little more down and front, and reduce the size until the size of the net is really the same as the head.
At then, click on the button “project on scalp”: you really want the electrodes to be touching the head surface.
What is the problem that you are having?

8

Yes, there are EEG electrodes.
The problem is, when I edit the position of electrodes, I think that I introduce an error.
What I want to do, is import the channel File, and no to select the option “Right click > MRI Registration > Edit…”.
What do you think about this? Do I introduce an error with this edition?

Cheers

Federico

9

No, I think this is what you are supposed to do with EEG: there is always a bit of manual work with the correct positioning of the electrodes.
We try to avoid doing it with MEG because we have more accurate ways to do this registration.
Are you getting any error afterwards?

10

Hi Francois,
I will work and if I have an error I will comment.

Thank you very much for your help!