AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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Chad
July 08, 2010 05:38PM
Thanks for you help.

I did try a number of simple rotations like 3dWarp -deoblique and -oblique2card, but it just tilts the oddly-shaped brain (see attached).


The DICOM attributes I'm concerned with look like this:

(0018,1120) Gantry/Detector Tilt = 30.000000
(0018,1140) Rotation Direction = CW

(0020,0032) Image Position (Patient) = -120.000\-103.923\209.037
(0020,0037) Image Orientation (Patient) = 1.000000\0.000000\0.000000\0.000000\0.866025\-0.500000

Except for the z-value in the image position attribute, the values are the same for each slice in the volume. Based on what the image looks like after to3d, I'm thinking that I need to artificially push forward the slices as they move superior (based on the slice thickness and gantry tilt).



BTW, I have registered other CTs and MRIs with AFNI and it does quite well. Great tool.

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Subject Author Posted

Gantry Tilt

Chad July 08, 2010 04:30PM

Re: Gantry Tilt

Daniel Glen July 08, 2010 05:08PM

Re: Gantry Tilt

Chad July 08, 2010 05:38PM

Re: Gantry Tilt

Daniel Glen July 08, 2010 06:03PM

Re: Gantry Tilt

Chad July 09, 2010 09:04AM

Re: Gantry Tilt

Daniel Glen July 22, 2010 12:33PM

Re: Gantry Tilt

Chad July 23, 2010 11:46AM