Table 2.
Pilot comparison of the LCModel and jMRUI method calculation of means of relative signal intensities (%) and relative Cramér Rao Lower Bounds (CRLB, %) of five liver and muscle spectra and means of their coefficients of variance CV (%) for the comparison. The BASISp set was applied.
| Liver | γ-ATP | α-ATP | β-ATP | GPC | PCr | Pi | |
| jMRUI | Relative signal intensity | 23.3 | 26.9 | 13.4 | 21.6 | 2.5 | 12.3 |
| Relative CRLB | 2.0 | 1.9 | 4.0 | 3.9 | 19.6 | 3.9 | |
| LCModel | Relative signal intensity | 26.0 | 34.1 | 11.3 | 15.6 | 3.3 | 9.7 |
| Relative CRLB | 3.3 | 2.7 | 4.7 | 6.0 | 11.0 | 5.0 | |
| mean CV | 11 | 23 | 16 | 37 | 33 | 23 | |
| Muscle | γ-ATP | α-ATP | β-ATP | GPC | PCr | Pi | |
| jMRUI | Relative signal intensity | 12.4 | 10.3 | 10.0 | 2.6 | 60.2 | 4.4 |
| Relative CRLB | 1.2 | 1.5 | 2.0 | 8.8 | <1 | 1.9 | |
| LCModel | Relative signal intensity | 14.6 | 12.2 | 10.5 | 3.4 | 53.6 | 5.7 |
| Relative CRLB | 1.7 | 2.0 | 2.3 | 8.7 | <1 | 2.0 | |
| mean CV | 16 | 17 | 5 | 24 | 12 | 25 |
The characterization of CV was used: CV < 10 is very good agreement, 10–20 is good agreement, 20–30 is acceptable agreement, and CV > 30 is not acceptable.