VoyForums
[ Show ]
Support VoyForums
[ Shrink ]
VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, [2] ]

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 17:27:08 12/03/02 Tue
Author: Mark Elliott
Subject: Re: siemens file formats
In reply to: Dan Kimberg 's message, "siemens file formats" on 11:28:18 12/03/02 Tue

Dan,
Very good points. I have looked into this somewhat, and I'll give a brief summary here. The Siemens systems create
Dicom format images, and the scanner can be configured to
perform an automatic "dicom send" to a remote computer waiting to receive the images. We'll set up the CD-burner locally to let users leave with a CDrom as well. There is apparently a wrinkle with the images produced in functional runs, in that Siemens does not produce truly Dicom standard images when performing what they call "acquisition loop" sequences (that's what they call a repeat of the same image sequence temporally, as in any fmri run). These images use some non-standard scheme that regular dicom reading programs will choke on. There is a "fix-it" program which I will try to set up on the scanner to filter these files correctly. More on that when once the scanners arrive.
I don't know a whole lot more than this so far. It might be a good idea to get our hands on some typical Siemens EPI
images from another site to play with.

And congrats on being the first person to post to this board!

Mark.


>I hope this is the right place for this, but feel free
>to redirect me.
>
>I'm wondering about the formats of that data files
>coming off the new scanners (I'm thinking mostly of
>BOLD fMRI and ASL perfusion studies of the brain). It
>would be great if we could find out in advance what
>kind of format the data will come in, so that we can
>make sure everyone using our software will be able to
>process their data without having to wait for us to
>catch up.
>
>I don't know if this is something set in stone or
>something that has to be decided. I guess the
>questions are fairly obvious. If it's some
>proprietary Siemens format, whatever details we can
>get in advance would help. If it's something more
>standard, like DICOM, it would still help to have some
>idea what will be in the files (compressed or
>uncompressed data, what headers, etc.). It would also
>be helpful to know if we can get our functional images
>unreconstructed, or if that has to be done online.
>
>Any information would be greatly appreciated. Thanks,
>
>dan

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[ Contact Forum Admin ]

Forum timezone: GMT-5
VF Version: 3.00b, ConfDB:
Before posting please read our privacy policy.
VoyForums(tm) is a Free Service from Voyager Info-Systems.
Copyright © 1998-2019 Voyager Info-Systems. All Rights Reserved.