MRI/CT detection of posterior semicircular canal dehiscencea
| PSC (215 Canals, 9 Excluded) | Dehiscence on CT (No.) | No Dehiscence on CT (No.) |
|---|---|---|
| Dehiscence on MRI (1.5T/3T) | 1 (1/0) | 2 (0/2) |
| No dehiscence on MRI | 0 (0/0) | 212 (79/133) |
↵a Detailed results for 1.5T and 3T are displayed in parentheses as follows: (1.5T/3T). Of the 224 PSCs in 112 patients, 9 were excluded because of artifacts on CT and/or MRI. In the remaining 215 canals, 1 of the 3 (1 + 2) cases of SSC dehiscence seen on FIESTA was confirmed on CT. When there was no PSC dehiscence on MRI, there was no PSC dehiscence seen on CT.