Fig. 89 (abstract O70).

For each compound the r₁ value was estimated by fitting the IR-FGE signals as a function of TI(S(TI) = |A ‐ B × exp(‐ TI/T₁*)|, where T₁ = T₁* × [B/A ‐ 1]). Fig. a shows an IR-FGE MR image for one particular TI, and Fig. b shows the signals fits in each tube. From the T₁, and Fig. b shows the signal fits in each tube. From the T₁-maps (Fig. c) the longitudinal relaxivity was extracted by the linear fit: R₁ = 1/T₁ = 1/T₁₀ + r₁ × [CA]