Clinical and imaging analysis of otosclerosis

WU Quan-yang; ZHENG Rui-bin; WANG Jia-qi; LI Song-bai

doi:10.12117/jccmi.2019.05.002

Journal of China Clinic Medical Imaging ›› 2019, Vol. 30 ›› Issue (5) : 309-312. DOI: 10.12117/jccmi.2019.05.002

Clinical and imaging analysis of otosclerosis

WU Quan-yang, ZHENG Rui-bin, WANG Jia-qi, LI Song-bai

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Abstract

Objective: To determine the CT findings of otosclerosis and evaluate the value of high resolution CT in the diagnosis of otosclerosis. Materials and Methods: 25 patients with confirmed diagnosed by clinical and surgical examination were collected from December 2015 to March 2018 at the First Affiliated Hospital of China Medical University. 20 patients with confirmed non-otosclerosis sclerosis were collected at the same time. The patients were examined by high resolution CT before operation. Results: A total of 35 ears were found abnormal in 20 patients(40 ears) after CT examination, with the sensitivity of 87.5%, and specificity of 80%. 22 ears were the vestibular window type(62.9%), mainly represented as the enlargement or narrowing of the vestibular window and the thickening of the stapes foot plate on CT. 9 ears were the cochlear window type(25.7%), mainly represented as the low density of the bones around the cochlea on CT. 4 ears were the mixed type (11.4%), mainly represented as the low density and the destruction of the bones in labyrinth on CT. Conclusion: Otosclerosis could be diagnosed on high-resolution CT with high sensitivity and specificity. High resolution CT can identify the site and extent of otosclerosis, and can effectively identify the lesions and determine the type, providing important information for preoperative assessment and surgical plan.

Key words

Otosclerosis / Tomography, spiral computed

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WU Quan-yang, ZHENG Rui-bin, WANG Jia-qi, LI Song-bai. Clinical and imaging analysis of otosclerosis[J]. Journal of China Clinic Medical Imaging. 2019, 30(5): 309-312 https://doi.org/10.12117/jccmi.2019.05.002

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