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biac:analysis:topup_correction [2019/02/22 14:03] cmp12biac:analysis:topup_correction [2019/02/22 14:44] cmp12
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 The bottom two images are the mean functional image of a series uncorrected, then corrected by the topup results. The bottom two images are the mean functional image of a series uncorrected, then corrected by the topup results.
  
-{{:biac:analysis:epi_corrected.png?800|}}+{{ :biac:analysis:epi_corrected.png?800|}}
  
 If you want to re-generate a valid BXH for the corrected data, you can generate a new BXH and merge in the original info If you want to re-generate a valid BXH for the corrected data, you can generate a new BXH and merge in the original info
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 </code> </code>
  
-{{:biac:analysis:dwi_corrected.png?600|}}+{{ :biac:analysis:dwi_corrected.png?600|}}
  
 If you want to re-generate a valid BXH for the corrected data, you can generate a new BXH and merge in the original info If you want to re-generate a valid BXH for the corrected data, you can generate a new BXH and merge in the original info
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 ==== Prepare your input datasets ==== ==== Prepare your input datasets ====
 +
 +Specify that a set of images (typically b=0 volumes) will be provided for use in inhomogeneity field estimation only
  
 For scenario 1, create your blip up / blip down B0 data the same way as above. For scenario 1, create your blip up / blip down B0 data the same way as above.
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 dwipreproc dwi.mif dwi_corr.mif -rpe_all -pe_dir AP -readout_time 0.10656 -debug dwipreproc dwi.mif dwi_corr.mif -rpe_all -pe_dir AP -readout_time 0.10656 -debug
  
--rpe_all signals that you've replicated ALL the directions with a rpe acquisition+-rpe_all signals that you've replicated 
 +LL the directions with a rpe acquisition
 -pe_dir is the phase encode direction of your regular acquisition -pe_dir is the phase encode direction of your regular acquisition
 -readout_time from above   -readout_time from above  
 </code> </code>
  
 +
 +{{ :biac:analysis:trace_raw_corr.png?800 |}}
  
biac/analysis/topup_correction.txt · Last modified: 2024/06/21 15:44 by 127.0.0.1