Several effects can affect the quality of the processed spectra:
- Large residual fat signal can reduce the quality of the fit. The analysis range can be chosen such that fat is excluded.
- If residual fat is not present, increasing the analysis range can improve the quality of the baseline correction.
- Broader linewidth can cause the fit to fail if too many baseline polynomials are used. Improve by reducing the number of polynomials. Always check the quality of baseline correction in the spectral display.
- Lock relative frequency and/or lock relative width can be used if one or more peaks cannot be detected properly due to low signal.
- Lock relative frequency and/or lock relative width should not be used if fine control of the fitting is required.
Upper spectrum: Increased analysis range. Lwer spectrum: lock relative frequency is not used. The fit for choline and creatine is more accurate.
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