Semiquantitative perfusion metrics of jugular foramen tumors normalized to the sigmoid sinusa
| AUC | Peak | TME | Wash-in | Washout | |
|---|---|---|---|---|---|
| Paraganglioma | 0.86 (SD, 0.19) | 0.86 (SD, 0.21) | 1.04 (SD, 0.24) | 1.00 (SD, 0.12) | 1.00 (SD, 0.14) |
| Schwannoma | 0.45 (SD, 0.15) | 0.43 (SD, 0.13) | 3.13 (SD, 0.64) | 0.25 (SD, 0.13) | 0.12 (SD, 0.18) |
| P value | <.001 | <.001 | <.001 | <.001 | <.001 |
↵a There is a statistically significant difference between paragangliomas and schwannomas when comparing their values for AUC, peak enhancement, wash-in, and washout. Of note, most paragangliomas had wash-in and washout values of ≥1.0, which means that these lesions demonstrated permeability characteristics similar to those of the blood pool because all values were normalized to the sigmoid sinus. Data are means unless otherwise indicated. (Tables 2 and 3 separated for formatting purposes).