| 刘兆会,王振常,鲜军舫.中耳炎颞骨并发症影像诊断[J].中国医学影像技术,2008,24(9):1382~1385 |
| 中耳炎颞骨并发症影像诊断 |
| Imaging diagnosis of intratemporal complications caused by otits media |
| 投稿时间：2008-03-21 修订日期：2008-07-07 |
| DOI： |
| 中文关键词: 中耳炎 并发症 体层摄影术,X线计算机 磁共振成像 |
| 英文关键词:Otitis media Complication Tomography, X-ray computed Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 分析中耳炎颞骨并发症的HRCT、MRI表现。 方法 回顾性分析33例中耳炎颞骨并发症(35耳)的HRCT和MRI表现。 结果 迷路受侵19耳,其中骨迷路侵蚀8耳,HRCT显示骨迷路破坏7耳;迷路腔淋巴液受侵10耳,HRCT显示骨迷路破坏7耳,MRI显示淋巴液呈短T1等T2信号5耳,短T1短T2信号4耳,等T1等T2信号1耳,其中明显强化8耳,轻度强化2耳;迷路广泛骨质破坏1耳,HRCT显示软组织密度影、骨质破坏及死骨,MRI上呈长T1短T2信号及等T1长T2信号,不均匀强化;面神经受侵16耳,HRCT显示面神经管破坏12耳,增粗4耳,MRI显示面神经增粗、异常强化11耳;岩尖炎5耳,HRCT显示岩尖骨质破坏及软组织密度影,MRI呈长T1长T2信号,中心无强化而周边环形强化3耳,明显均匀强化2耳;骨膜下脓肿1耳,HRCT显示乳突外壁骨质破坏,耳周软组织增厚,MRI显示耳后骨膜下新月形长T1长T2信号,无强化;颞颌关节受累1耳,HRCT显示颞颌关节上壁骨质破坏,MRI显示关节窝内长T1长T2信号,中度强化。伴颅外并发症2耳,颅内并发症28耳。 结论 HRCT和MRI结合使用可明确中耳炎颞骨并发症类型、部位和范围,给临床医生制定合理、有效的治疗方案提供重要信息。 |
| 英文摘要: |
| Objective To study High-resolution CT (HRCT) and MRI findings of infratemporal complications caused by otitis media. Methods HRCT and MRI findings in 33 cases (35 ears) with intratemporal complications caused by otitis media were retrospectively analyzed. Results Among nineteen ears with labyrinth involved, 8 ears were only with bony labyrinth erosion in which bony labyrinth destruction were manifested in 7 ears by HRCT; 10 ears were with lymph fluid involved in which 7 ears were found bony labyrinth destruction in HRCT, and 5 ears were with hyperintense in T1WI and isointense in T2WI, 4 ears with hypointense in T1WI and T2WI and 8 ears with marked enhancement, 2 ears with mild enhancement in MRI. Bone destruction and bone sequestrum were found in HRCT and mixed intense in T1WI and T2WI in 1 ear with extensive bony labyrinth destruction. Facial nerve involvement was observed in 16 ears, in which 12 ears with facial nerve canal destruction, 4 ears with facial nerve canal enlargement in HRCT and 11 ears with facial nerve enlargement and abnormal enhancement in MRI. Petrositis was proved in 5 ears, 1 ear with subperiosteal abscess and 1 ear with temporomandibular involved. Otherwise, there were 2 ears with extracranial complications and 28 ears with intracranial complications. Conclusion HRCT and MRI can accurately diagnose the types and location of intratemporal complications, which can provide important information in planning effective treatment. |
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