TABLE 3:
Comparison of spectroscopic characteristics of tumefactive demyelinating lesions and gliomas
| Region | TDL (n = 6) |
Glioma (n = 10) |
P Value | |||
|---|---|---|---|---|---|---|
| Median | Range | Median | Range | |||
| Enhancing Region | Cho/Cr | 2.1 | 1.7–4.6 | 3.3 | 0.9–12.7 | .328 |
| NAA/Cr | 1.5 | 0.7–1.9 | 0.7 | 0.6–1.2 | .014 | |
| Central Region | Cho/Cr | 3.2 | 1.6–4.9 | 3.2 | 1.5–11.3 | .914 |
| NAA/Cr | 2.4 | 1.0–3.2 | 0.9 | 0.5–1.6 | .008 | |
| Perilesional T2 Region | Cho/Cr | 1.6 | 1.1–1.9 | 1.5 | 1.0–2.3 | .956 |
| NAA/Cr | 1.5 | 0.3–2.9 | 1.3 | 0.9–2.1 | .478 | |
| Contralateral Normal Brain | Cho/Cr | 0.9 | 0.5–1.4 | 0.9 | 0.5–1.6 | .621 |
| NAA/Cr | 1.8 | 1.6–3.0 | 1.6 | 1.1–3.6 | .383 | |
Note.—Using the Wilcoxon rank-sum test and a Bonferroni correction for multiple comparisons, P < .0125 is considered statistically significant.