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biac:analysis:topup_correction

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biac:analysis:topup_correction [2021/08/24 18:26]
cmp12
biac:analysis:topup_correction [2021/08/24 18:29] (current)
cmp12
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 <​code>​ <​code>​
 readout = ( ( ceil ((1/​Round_factor) * AcquisitionMatrixPE / Asset_R_factor ) * Round_factor) - 1 ) * EchoSpacing * 0.000001 readout = ( ( ceil ((1/​Round_factor) * AcquisitionMatrixPE / Asset_R_factor ) * Round_factor) - 1 ) * EchoSpacing * 0.000001
- 
-EffectiveEchoSpacing = TotalReadoutTime/​ (reconMatrixPE - 1) 
  
 AcquisitionMatrixPE = the acquisition size of the data ( acquisitionmatrix[0] ) AcquisitionMatrixPE = the acquisition size of the data ( acquisitionmatrix[0] )
-reconMatrixPE = the size of the reconstructed data ( may be different from acquisition because of FFT rules ) 
 Round_factor = 4 if partial fourier ( PFF is in scanoptions ), 2 if full fourier. ​ most all scans will be 4 Round_factor = 4 if partial fourier ( PFF is in scanoptions ), 2 if full fourier. ​ most all scans will be 4
 Asset_R_factor = the reciprocal of the first value of dcm tag (0043,1083) Asset_R_factor = the reciprocal of the first value of dcm tag (0043,1083)
biac/analysis/topup_correction.txt · Last modified: 2021/08/24 18:29 by cmp12