Fig. 2.

Temporal (tSNR) versus image SNR (SNR′₀) in the lateral geniculate nucleus (LGN). Each data point represents the mean tSNR versus the mean SNR′₀ in the LGN ROI for flip angle = 8°, 16°, 26°, 38° and 70° ± standard error over 5 subjects. The different lines correspond to the fit of the extended SNR model (Hutton et al., submitted for publication; Kruger and Glover, 2001 and see Appendix A) to the tSNR and SNR′₀ 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 & HR & MP. Note that SNR′₀ = κ SNR₀ and κ ≈ 1.6.