XXXX : there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT.

@entity1 @entity1274 @entity389 @entity8719
BACKGROUND: @entity389 may cause @entity1274 ( @entity1274 ). However, the correlation between the small lateral semi-circular canal (LSCC) and @entity1274 is controversial. PURPOSE: To determine whether there is a correlation between the two using CT-based measurement. MATERIAL AND METHODS: We retrospectively reviewed the high-resolution CT images of the temporal bone obtained from consecutive @entity1 . A total 136 ears of 68 @entity1 (25 @entity1 and 43 @entity1 ; age range 20-85 years, mean 49.8 years) were included in this study. @entity1 who were clinically suspected to have @entity8719 were also excluded. Two radiologists independently measured the width and cross-sectional area of the bony island of LSCC. We evaluated the correlation between LSCC bone island width or cross-sectional area and hearing level in all cases using Pearson correlation co-efficients. In addition, we compared hearing levels among the @entity1 group with normal-sized LSCC (   mean-SD), small LSCC (<mean-SD) and very small LSCC (<mean-2SD) as defined by the width and cross-sectional area of the bony island using Student's t-test. RESULTS: A total 136 ears of 68 @entity1 (25 @entity1 and 43 @entity1 ; age range 20-85 years, mean 49.8 years) were included in this study. No significant correlation was shown between LSCC bony island width or cross-sectional area and hearing level (P   >   0.05). No significant difference in hearing levels were found among groups of the normal-sized, small and very small LSCC (P   >   0.05). CONCLUSION: We conclude that there is no correlation between isolated small LSCC and @entity1274 .
