Descriptive statistics of low-grade astrocytomas
| Tumor Type* | n (%) | Parameter | Mean/SD/SE | 95% CI for Mean | Range |
|---|---|---|---|---|---|
| PAS (I/IV) | 10/75 (13.33) | rCBVT | 1.71/0.45/0.14 | 1.39–2.03 | 0.84–2.52 |
| rCBVP | 0.97/0.14/0.05 | 0.87–1.07 | 0.77–1.29 | ||
| DAS (II/IV) | 14/75 (18.67) | rCBVT | 1.78/0.35/0.09 | 1.58–1.98 | 1.29–2.43 |
| rCBVP | 1.28/0.19/0.05 | 1.17–1.39 | 1.07–1.86 |
Note.—PAS indicates pilocytic astrocytoma; DAS, diffuse astrocytoma; rCBVT, tumoral relative cerebral blood volume; rCBVP, peritumoral relative cerebral blood volume.
* Roman numerals in parentheses show tumor grade according to the World Health Organization 2000 classification scheme.