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Table 2 Initial values and bounds applied to estimate unknown parameters of the L-M model

From: CMR-based blood oximetry via multi-parametric estimation using multiple T2 measurements

Estimated Parameters Unconstrained Solution Fixed Solution, with T 2O , τ ex , and α values learned from training data Constrained Solution, with T 2O , τ ex , and α ranges learned from training data
%SbO 2 0.8, [0–1] 0.8, [0–1] 0.8, [0–1]
T 2O (ms) 200, [0 - ∞] 350 300, [200–400]
τ ex (ms) 3, [0 - ∞] 1.5 3, [0–6]
α (ppm) 0.5, [0 - ∞] 0.92 0.545, [0.52–0.57]