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Table 2:

4T CNR measurements*

SequenceRed Nucleus CNRSubstantia Nigra CNRMedial Geniculate CNR
IA/RNIA/RN capsuleRN/RN capsuleIA/SNcCC/SNrSNc/SNrCMG/LMGCMG/IA
T2 tse3.364.536.27
T2 tse SD0.770.481.64
SWI6.981.135.858.755.193.564.571.64
SWI SD2.601.342.231.671.511.082.490.89
  • * The first row for each sequence represents the mean in a given region of interest and the second row represents the SD in the same region of interest. HP-filtered-phase data were used for SWI CNR measurements; no contrast for the given regions of interest was observed in the gradient-echo T1 data. Empty data boxes show that CNRs between certain structures could not be calculated because the structures could not be detected.

  • Because SNc and SNr were not separable for T2, CNR is recorded here for IA/SN and CC/SN.