biac:analysis:topup_correction

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biac:analysis:topup_correction [2021/08/24 18:24] cmp12 |
biac:analysis:topup_correction [2021/08/24 18:29] cmp12 |
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< | < | ||

readout = ( ( ceil ((1/ | readout = ( ( ceil ((1/ | ||

- | |||

- | EffectiveEchoSpacing = TotalReadoutTime/ | ||

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. | Round_factor = 4 if partial fourier ( PFF is in scanoptions ), 2 if full fourier. | ||

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) | ||

Line 113: | Line 110: | ||

==== Create your acq_params.txt file === | ==== Create your acq_params.txt file === | ||

- | the readout time in seconds for the parameter file will be: | + | calculate your readout time from above |

- | < | + | |

- | | + | |

- | echospacing in BXH header is in microseconds | + | |

- | </ | + | |

the regular B0s will get the " | the regular B0s will get the " |

biac/analysis/topup_correction.txt · Last modified: 2021/08/24 18:29 by cmp12