Distribution of intramastoid signal intensity and enhancement
| No. | No. of Patients per Category (Valid %) | |||
|---|---|---|---|---|
| SI in T2 FSE and CISS | Isointense to CSF | Hypointense to CSF, hyperintense to WM | Iso- or hypointense to WM | |
| CISS | 25 | 1 (4) | 14 (56) | 10 (40) |
| T2 FSE | 31 | 3 (10) | 24 (77) | 4 (13) |
| SI in T1 SE | Isointense to CSF | Hyperintense to CSF, not to WM | Hyperintense to WM | |
| T1 SE | 31 | 0 (0) | 22 (71) | 9 (29) |
| SI in DWI (b=1000) | Hypointense to WM | Isointense to WM | Hyperintense to WM | |
| 27 | 2 (7) | 9 (33) | 16 (59) | |
| SI in ADC | Not lowered | Lowered | ||
| 26 | 10 (38) | 16 (62) | – | |
| Enhancement | None | Faint, thin | Intense, thick | |
| 31 | 3 (10) | 12 (39) | 16 (52) | |
Note:—No. indicates the number of patients with a specific sequence available.