Descriptive statistics of different tumor groups
| Tumor Type* | n (%) | Parameter | Mean/SD/SE | 95% CI for Mean | Range |
|---|---|---|---|---|---|
| LGGT (I–II/IV) | 36/75 (48.00) | rCBVT | 2.30/1.12/0.19 | 1.92–2.68 | 0.84–5.73 |
| rCBVP | 1.18/0.24/0.04 | 1.10–1.26 | 0.77–1.86 | ||
| LGAT (I–II/IV) | 24/75 (32.00) | rCBVT | 1.75/0.38/0.08 | 1.59–1.91 | 0.84–2.52 |
| rCBVP | 1.15/0.23/0.05 | 1.05–1.25 | 0.77–1.86 | ||
| LGODG (II/IV) | 12/75 (16.00) | rCBVT | 3.40/1.29/0.37 | 2.59–4.22 | 1.73–5.73 |
| rCBVP | 1.23/0.25/0.07 | 1.07–1.38 | 0.87–1.83 | ||
| HGGT (III–IV/IV) | 22/75 (29.33) | rCBVT | 5.42/1.52/0.33 | 4.74–6.09 | 3.15–8.96 |
| rCBVP | 2.17/0.82/0.18 | 1.80–2.53 | 1.00–4.14 | ||
| HGAT (III–IV/IV) | 15/75 (20.00) | rCBVT | 4.78/0.99/0.26 | 4.23–5.33 | 3.15–6.58 |
| rCBVP | 1.99/0.59/0.15 | 1.66–2.31 | 1.00–3.09 | ||
| HGODG (III/IV) | 7/75 (9.33) | rCBVT | 6.78/1.63/0.62 | 5.27–8.29 | 4.55–8.96 |
| rCBVP | 2.55/1.15/0.43 | 1.49–3.61 | 1.23–4.14 | ||
| MET | 17/75 (22.67) | rCBVT | 3.21/0.98/0.24 | 2.70–3.71 | 1.27–5.60 |
| rCBVP | 0.97/0.09/0.02 | 0.93–1.02 | 0.80–1.13 |
Note.—LGGT indicates low-grade glial tumor; LGAT, low-grade astrocytic tumor; LGODG, low-grade oligodendroglioma; HGGT, high-grade glial tumor; HGAT, high-grade astrocytic tumor; HGODG, high-grade oligodendroglioma; MET, metastasis; 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.