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MR imaging findings of the patient and control groups
| MR Imaging Findings | Symptomatic Sides of Patients (n = 68) (%) | Asymptomatic Sides of Patients (n = 42) (%) | Asymptomatic Sides of Controls (n = 86) (%) |
|---|---|---|---|
| Type of vascular loop in CPA | |||
| Type I | 44 (65) | 35 (83) | 62 (72) |
| Type II | 18 (26) | 3 (7) | 15 (17) |
| Type III | 6 (9) | 4 (10) | 9 (11) |
| Vascular contact with eighth CN | 36 (53) | 17 (40) | 35 (41) |
| Angulation of eighth CN | 10 (15) | 6 (14) | 11 (13) |
Note:—CPA indicates cerebellopontine angle; CN, cranial nerve.
