Re: siemens file formats -- CAMRIS Forum

[ 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: 22:49:37 12/03/02 Tue
Author: Dan Kimberg
Subject: Re: siemens file formats
In reply to: Mark Elliott 's message, "Re: siemens file formats" on 17:27:08 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.

Good to know, and thanks for the quick reply. Non-standard tweaking is not a problem, since we're going to use custom code to import them regardless. As long as it's mostly DICOM-ish, it should be easy to handle.

> 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.

I'll see if I can track some down (and I'll let you know if I do), but please let me know if you get hold of any. It would also be handy to have other images from the same session (e.g., high-res T1-weighted images), to get some idea what information's available to coregister the images.

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

Thanks for setting it up. Although I have some reservations about the lavender background, I think it's a great way to keep CAMRIS users connected.

dan

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