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Table 3: MRI/CT detection of posterior semicircular canal dehiscence^{^a}
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.

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)