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Tumor characteristics seen with each field strength. Delineation of the chiasm and tumor neovasculature were seen with more confidence at 7T. It must be stated, however, that not all pathologies will have each of these features. Rates of detection by imaging can only be confirmed with intraoperative findings.
| Field | Optic chiasm compression | Cystic/Hemorrhagic Component | Tumor vasculature | |||
|---|---|---|---|---|---|---|
| 2 | 2+1 | 2 | 2+1 | 2 | 2+1 | |
| 7T | 8/8 | 8/8 | 3/8 | 3/8 | 3/8 | 5/8 |
| 3T+1.5T | 5/8 | 6/8 | 3/8 | 4/8 | 1/8 | 4/8 |
