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高分辨率CT在临床应用后，实践证明对耳部病变的发现比X线争片或体层摄影有更多的优越性，CT最大的优点是对中耳腔异常软组织成分的评价上优于多轨迹体层摄影；较高的密度分辨率，清晰的图像和CT值测量的应用，对异常的病理组织的发现及性质的分析，有很大的帮助。当需要手术时
High-resolution CT in clinical application, the practice proved that the discovery of ear lesions than X-ray films or tomography have more advantages, the biggest advantage of CT is the evaluation of the middle ear cavity abnormal soft tissue components superior to Multi-track tomography; high density resolution, clear image and CT value of the application of abnormal pathological tissue findings and properties of great help. When surgery is needed