目的：确定慢性化脓性中耳乳突炎的双螺旋CT扫描诊断价值。
Purpose To recognize the value of double helix CT in diagnosis of Chronic otitis mastoidea.
结论在根除病灶的基础上保存并提高听力，IBM合并后鼓室径路为慢性化脓性中耳乳突炎外科手术的合理选择。
Conclusion IBM combined with posterior tympanum is a good choice for preserving or improving hearing based on eradication of the focus among patients with chronic suppurative otitis media.
结论在根除病灶的基础上保存并提高听力，IBM合并后鼓室径路为慢性化脓性中耳乳突炎外科手术的合理选择。
Conclusion IBM combined with posterior tympanum is a good choice for preserving or improving hearing based on eradication of the focus among patients with chronic suppurative otitis media.
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