Table 1.
NAA | NAAG | Glu | ||||
---|---|---|---|---|---|---|
Mean±SD | Error(%) | Mean±SD | Error(%) | Mean±SD | Error(%) | |
True concentration | 13.0 | 2.6 | 10.0 | |||
No lineshape correction | 14.45±0.07 | 11 | 1.23±0.04 | 53 | 9.9±0.1 | 1.0 |
Original Wiener method | 12.91±0.06 | 0.69 | 2.38±0.05 | 8.5 | 9.5±0.1 | 5.2 |
New Wiener (T2NAA=130 ms) | 13.02±0.05 | 0.15 | 2.64±0.04 | 1.5 | 9.7±0.1 | 2.9 |
New Wiener (T2NAA=100 ms) | 12.98±0.06 | 0.15 | 2.63±0.03 | 1.3 | 9.7±0.2 | 3.3 |
New Wiener (T2NAA=160 ms) | 13.06±0.05 | 0.46 | 2.63±0.04 | 1.2 | 9.7±0.2 | 2.5 |
T2NAA: T2 value of NAA used in the reconstruction.