Table I.
Imaging vs endoscopic findings discordance for neurovascular conflicts.
| PICA | VA + PICA | VA | AICA | PICA + AICA | Other | Total | |
|---|---|---|---|---|---|---|---|
| MRI | 37% (n = 151) |
30% (n =121) |
11% (n = 45) |
10% (n = 40) |
7% (n = 28) |
5% (n = 21) |
N = 406 |
| Endoscopy | 30% (n = 127) |
23% (n = 98) |
3% (n = 13) |
11% (n =46) |
16% (n = 66) |
17% (n = 74) |
N = 424 |
| Discordance | 36% | 34% | 46% | 58% | 78% | 93% |
Discordance was calculated for each surgical conflict as the rate of patients that exhibited a different conflict in MRI.
AICA: Antero-Inferior Cerebellar Artery; MRI: Magnetic Resonance Imaging; PICA: Postero-Inferior Cerebellar Artery; VA: Vertebral Artery