Abstract
Background: Inner ear malformations may cause sensorineural hearing loss (SNHL). However, the correlation between the small lateral semi-circular canal (LSCC) and SNHL 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 patients. A total 136 ears of 68 patients (25 men and 43 women; age range 20-85 years, mean 49.8 years) were included in this study. Patients who were clinically suspected to have otosclerosis 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 patient 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 patients (25 men and 43 women; age range 20-85 years, mean 49.8 years) were included in this study. No significant correlation was shown between LSCC bony island width
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Yamashita, Koji;
Yoshiura, Takashi;
Hiwatashi, Akio;
Tuvshinjargal, Dashjamts;
Kamano, Hironori;
Honda, Hiroshi;
[1]
Inoguchi, Takashi
[2]
- Dept. of Clinical Radiology, Graduate School of Medical Sciences, Kyushu Univ. Fukuoka (Japan)
- Dept. of Otolaryngology, Kitakyushu Municipal Medical Center, Kitakyushu (Japan)
Citation Formats
Yamashita, Koji, Yoshiura, Takashi, Hiwatashi, Akio, Tuvshinjargal, Dashjamts, Kamano, Hironori, Honda, Hiroshi, and Inoguchi, Takashi.
Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT.
Sweden: N. p.,
2011.
Web.
doi:10.1258/AR.2010.100324.
Yamashita, Koji, Yoshiura, Takashi, Hiwatashi, Akio, Tuvshinjargal, Dashjamts, Kamano, Hironori, Honda, Hiroshi, & Inoguchi, Takashi.
Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT.
Sweden.
https://doi.org/10.1258/AR.2010.100324
Yamashita, Koji, Yoshiura, Takashi, Hiwatashi, Akio, Tuvshinjargal, Dashjamts, Kamano, Hironori, Honda, Hiroshi, and Inoguchi, Takashi.
2011.
"Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT."
Sweden.
https://doi.org/10.1258/AR.2010.100324.
@misc{etde_1010777,
title = {Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT}
author = {Yamashita, Koji, Yoshiura, Takashi, Hiwatashi, Akio, Tuvshinjargal, Dashjamts, Kamano, Hironori, Honda, Hiroshi, and Inoguchi, Takashi}
abstractNote = {Background: Inner ear malformations may cause sensorineural hearing loss (SNHL). However, the correlation between the small lateral semi-circular canal (LSCC) and SNHL 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 patients. A total 136 ears of 68 patients (25 men and 43 women; age range 20-85 years, mean 49.8 years) were included in this study. Patients who were clinically suspected to have otosclerosis 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 patient 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 patients (25 men and 43 women; 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 SNHL}
doi = {10.1258/AR.2010.100324}
journal = []
issue = {2}
volume = {52}
place = {Sweden}
year = {2011}
month = {Feb}
}
title = {Sensorineural hearing loss: there is no correlation with isolated dysplasia of the lateral semi-circular canal on temporal bone CT}
author = {Yamashita, Koji, Yoshiura, Takashi, Hiwatashi, Akio, Tuvshinjargal, Dashjamts, Kamano, Hironori, Honda, Hiroshi, and Inoguchi, Takashi}
abstractNote = {Background: Inner ear malformations may cause sensorineural hearing loss (SNHL). However, the correlation between the small lateral semi-circular canal (LSCC) and SNHL 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 patients. A total 136 ears of 68 patients (25 men and 43 women; age range 20-85 years, mean 49.8 years) were included in this study. Patients who were clinically suspected to have otosclerosis 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 patient 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 patients (25 men and 43 women; 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 SNHL}
doi = {10.1258/AR.2010.100324}
journal = []
issue = {2}
volume = {52}
place = {Sweden}
year = {2011}
month = {Feb}
}