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題名 | High-resolution Computed Tomography in the Diagnosis of Otosclerosis in Taiwan=高解析度電腦斷層於臺灣耳硬化症診斷價值 |
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作者姓名(中文) | 李宗倫; 王懋哲; 凌憬峰; 廖文輝; 俞振華; 蕭安穗; | 書刊名 | Journal of the Chinese Medical Association |
卷期 | 72:10 2009.10[民98.10] |
頁次 | 頁527-532+CA99 |
分類號 | 416.81 |
關鍵詞 | 耳硬化症; 放射資訊系統; X射線電腦斷層掃描; Otosclerosis; Radiology information systems; X-ray computed tomography; |
語文 | 英文(English) |
英文摘要 | Background: Otosclerosis is rare in Asians, and the clinical role of imaging remains controversial. We sought to clarify the tomographic findings of otosclerosis in Taiwanese patients and determine the value and necessity of high-resolution computed tomography (HRCT) of the temporal bone in diagnosing the disease in Taiwan. Methods: This retrospective study enrolled 22 patients (24 ears) with clinically, surgically and pathologically confirmed otosclerosis. All subjects underwent HRCT of the temporal bone; the images were then reviewed at workstations. The control group consisted of 15 patients. Results: HRCT was positive in 46% of the clinically, surgically and pathologically confirmed otosclerotic ears. Patients with a positive imaging study had a smaller preoperative air–bone gap and a significantly shorter duration of the disease. The duration of the disease also tended to be greater in patients with a larger preoperative air–bone gap. Conclusion: HRCT has high specificity (100%) but low sensitivity (46%) for the diagnosis of otosclerosis in Taiwanese patients despite progress in radiology. The low image positive rate we found, compared with that in Western literature, may stem from a greater percentage of inactive otosclerosis. |
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