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Table 1 A comparison of slow and fast transverse relaxation times for different agarose concentrations and dependence of visibility VisibilitySQ (ΔMo/Δ[Na]) and visibilityIR (ΔMo/Δ [Na]) on agarose concentration. VisibilitySQ and visibilityIR for all concentrations of agarose were obtained using SQ and IR techniques. All transverse relaxation time constants T 2s SE, T 2s SEand T 2s IR, T 2s IRwere determined by single quantum Hahn spin echo and IR pulse sequence on NMR.

From: Rapid in vivo Taxotere quantitative chemosensitivity response by 4.23 Tesla sodium MRI and histo-immunostaining features in N-Methyl-N-Nitrosourea induced breast tumors in rats

% w/v Agarose T2sSE T2sSE MRI VisibilitySQ T2sIR T2sIR MRI VisibilityIR
10 12.4 ± 1.2 8.1 ± 0.48 1.75 13.7 ± 1.2 7.4 ± 0.5 3.45
20 7.5 ± 0.35 4.1 ± 0.31 1.65 8.4 ± 0.3 3.4 ± 0.3 4.50
30 7.1 ± 1.61 1.8 ± 0.04 1.5 6.4 ± 0.2 1.8 ± 0.04 4.70
40 3.4 ± 0.1 1.2 ± 0.04 1.4 4.6 ± 0.2 1.2 ± 0.1 7.22