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  • 7T Resting State fMRI
    • Resting State Parameters
      • Variable TR
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Docs » 7T Resting State fMRI

7T Resting State fMRI

Resting State Parameters

2x2x2mm3, 220 volumes, 2.18-2.23s TR

3dinfo -ad3 -n4 /Volumes/Hera/Raw/BIDS/7TBrainMech/sub-10129/20180917/func/sub-10129_task-rest_run-01_bold.nii.gz 
2.040816        2.040816        1.999999        98      98      48      220

3dinfo -tr /Volumes/Hera/preproc/7TBrainMech_rest/MHRest_nost_ica/10129_20180917/brnaswdkm_func_4.nii.gz 
2.180000

Variable TR

EPI TR/TE tweaks during study (for scanner stability, SAR/saftey?). See /Volumes/Hera/Projects/7TBrainMech/scripts/mri/014_actual_tr.bash use in Makefile (txt/calc_rest_tr.txt)

perl -MList::Util=min,max -sale '
  $tr=sprintf("%.2f",$F[1]);
  push @{$a{$tr}}, $& if m/\d{8}/; 
  END {print join "\t", $_, $#{$a{$_}}, min(@{$a{$_}}), max(@{$a{$_}})
       for(keys %a)}
' < txt/calc_rest_tr.txt
 
2.23    46      20220602        20231110
2.18    43      20180129        20190823
2.20    194     20180917        20211211
0.00    6       20180312        20190816

Backlinks

  • Brain Mechanisms R01 (7T)
  • 7T Magnetic Resonance Imaging
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