Table 2.
Summary of the experimental frequencies measured in all 4 rat brains: The water 1H resonance frequency, the xenon gas-phase frequency (since this peak was quite broad, a range of CS values is provided), the primary DPXe peak (previously attributed to gray matter) frequency and the water-based DPXe reference. The water-based DPXe reference was calculated by dividing the water resonance frequency by 3.6152950216. The last two columns report the DPXe chemical shift calculated with respect to the water-based DPXe reference and the gas-phase reference.
| Subject | Water (MHz) |
129Xe Gas (MHz) |
DPXe (MHz) |
Water-based DPXe Reference (MHz) |
Gas-ref DPXe CS (ppm) |
Water-ref DPXe CS (ppm) |
|---|---|---|---|---|---|---|
| Rat #1 | 400.3263440 | 110.7315642–110.7317303 | 110.7532861 | 110.7313073 | 194.6–196.1 | 198.5 |
| Rat #2 | 400.3261221 | 110.7315811 | 110.7532519 | 110.7312459 | 195.7 | 198.7 |
| Rat #3 | 400.3264150 | 110.7316491 | 110.7533335 | 110.7313269 | 195.8 | 198.7 |
| Rat #4 | 400.3262054 | 110.7315610–110.7316060 | 110.7532815 | 110.7312689 | 195.9–196.3 | 198.8 |