https://www.wiki.mrrc.pitt.edu/ 2026-06-05T18:36:15+00:00 https://www.wiki.mrrc.pitt.edu/ https://www.wiki.mrrc.pitt.edu/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-04-09T02:09:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.wiki.mrrc.pitt.edu/doku.php?id=mr:analysis&rev=1744164562&do=diff MR analysis After prerpocessing, first level analysis (HRF modeling, especially of MR Tasks) can be done with * xcp_d (rest correlation matrices, reho) * AFNI's 3dDeconvolve * FSL's FEAT * SPM text/html 2024-11-24T22:39:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.wiki.mrrc.pitt.edu/doku.php?id=mr:resample_vs_registration&rev=1732487948&do=diff Resampling vs Registration Both resampling and registration (also spatial normalization/warping) modify the underlying matrices of one image to match that of another. But unlike resampling, only registration and warping inspect and modify based on the data within the images. text/html 2025-06-11T16:20:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.wiki.mrrc.pitt.edu/doku.php?id=mr:task&rev=1749658833&do=diff MR Task Notes A collection of code for tasks run at the MRRC that are publicly available can be found on <https://github.com/NPACore/mri-tasks> Also see MR analysis Software fMRI Tasks or “games” can be created using dedicated software * Psychopy - task code is plaintext; software (psychopy) and runtime (python) is free and open source. Provides graphical interface to build task or code primitives to DIY (eg text/html 2024-11-08T22:45:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.wiki.mrrc.pitt.edu/doku.php?id=mr:xnat_vs_gyrus&rev=1731105930&do=diff XNAT vs Gyrus DICOMs Imaging data may be pulled from XNAT, WPIC-XXX@cortex (mounted gyrus /disk/mace2/scan_data), or flywheel. The imaging data is identical but the dicoms are not. XNAT puts it's own information in the header and that changes all the dicom offsets. But the tags and values are all the same. So dicom_info in matlab, pydicom in python, dcmdumps, and AFNI's dicom_hdr all will report the same values.