Table 1 Quality control metrics of deuterium metabolic imaging over time calculated from the three central slices of the brain
From: Repeatability of deuterium metabolic imaging of healthy volunteers at 3 T
Signal-to-noise ratio | Linewidth (Hz) | Cramér Rao lower bounds (%) | |
|---|---|---|---|
Time (min) | Water | ||
0 | 10.3 ± 7 | 9.1 ± 0.9 | 6.7 ± 2.1 |
30 | 12.8 ± 3.9 | 9.9 ± 0.6 | 3.4 ± 0.6 |
75 | 11.6 ± 2.6 | 10.2 ± 0.9 | 3.7 ± 0.9 |
120 | 14.2 ± 4.2 | 10.6 ± 0.6 | 3.3 ± 0.7 |
Glucose | |||
0 | – | – | – |
30 | 4.7 ± 1.5 | 10.1 ± 0.2 | 10.7 ± 2.7 |
75 | 5.9 ± 2.2 | 10.1 ± 0.4 | 8.6 ± 2.9 |
120 | 6.1 ± 3 | 10 ± 0.1 | 8.5 ± 2 |
Glutamate + glutamine | |||
0 | – | – | – |
30 | 1.7 ± 0.5 | 17.8 ± 2.6 | 173 ± 48.4 |
75 | 3.2 ± 0.7 | 14.5 ± 1.7 | 43 ± 21.7 |
120 | 4.9 ± 1.5 | 15.2 ± 1.4 | 44.6 ± 17 |
Lactate | |||
0 | – | – | – |
30 | 1.8 ± 0.6 | 29.2 ± 6.5 | 173 ± 55 |
75 | 2.3 ± 0.6 | 26.7 ± 3.4 | 63.3 ± 26.2 |
120 | 2.8 ± 1 | 26.3 ± 4.6 | 85.6 ± 42.5 |