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] |