Fig. 5.

Temporal (tSNR) versus voxel size (in mm³) for three sets of acquisition parameters (Acq1, Acq2 and Acq3 respectively, see Table 1 for acquisition parameters). Each data point represents the mean tSNR in the VC ROI ± standard error over 5 subjects. The different lines correspond to the tSNR of the EPI time series after different noise correction models; 1) black circles — HW, 2) red crosses — HW & CRP, 3) dark blue stars — HW & RV & HR, 4) green squares — HW & CRP & RV & HR, 5) pink triangles — HW & MP, 6) light blue diamonds — HW & CRP & RV & MP.