Table 2. Estimates of metabolite parameters within regions of tumor.
The values shown are the median (range) of the SNR for hyperpolarized [1-13C]lactate, hyperpolarized [1-13C]pyruvate, and the ratios of these metabolites in tumor voxels for the patients shown in Figs. 5 and 6.
| Subject | n voxels | [1-13C]Lactate/[1-13C]pyruvate | [1-13C]Lactate SNR | [1-13C]Pyruvate SNR |
|---|---|---|---|---|
| Patient A | 11 | 0.28 (0.26–0.36) | 13.6 (5.9–18.6) | 41.0 (17.5–54.0) |
| Patient B | 6 | 0.38 (0.32–0.47) | 4.8 (3.6–7.8) | 13.5 (10.1–20.0) |
| Patient C | 3 | 0.32 (0.27–0.33) | 6.3 (4.1–7.3) | 22.5 (12.8–23.0) |
| Patient D | 4 | 0.28 (0.24–0.33) | 8.4 (6.4–16.1) | 30.0 (27.8–49.4) |