Anatomical Characteristics of Facial Nerve and Cochlea Interaction
Anatomical Characteristics of Facial Nerve and Cochlea Interaction
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DOI：
10.1159/000475876
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发表时间：
2017-01-01
影响因子：
1.6
通讯作者：
Li, Hao
中科院分区：
文献类型：
--
作者：
Schart-Moren, Nadine;Larsson, Sune;Li, Hao
目的：旨在利用显微 CT 和 3D 渲染研究人内耳模型和颞骨中面管迷路部分 (LP) 与耳蜗之间的关系。耳蜗-面部距离的减小可能会将电流从人工耳蜗传播到腰椎间盘并引起面神经刺激。影响因素可能是地形解剖结构和耳囊特性。方法：对人类颞骨档案进行显微 CT 和 3D 重建。此外，在硅胶和聚酯树脂模具中评估了耳蜗-面部距离，并分析了 LP 和耳蜗上基底转之间的关联。结果：耳囊局部变薄和局部解剖结构可以解释耳蜗面裂的发生，该现象的发生率为 1.4%。在具有上半规管裂开的 1 块骨头中注意到耳蜗面距离缩短，但在具有上半规管“蓝线”的骨头中则没有。耳囊经常撞击 LP 并导致狭窄。结论：具有 3D 渲染功能的 Micro-CT 为研究人类颞骨的地形解剖学提供了新的可能性。 LP 横截面的不同形状通常可以用“侵入”耳蜗来解释。 (C) 2017 S. Karger AG，巴塞尔
Objective: The aim was to study the relationship between the labyrinthine portion (LP) of the facial canal and the cochlea in human inner ear molds and temporal bones using micro-CT and 3D rendering. A reduced cochlea-facial distance may spread electric currents from the cochlear implant to the LP and cause facial nerve stimulation. Influencing factors may be the topographic anatomy and otic capsule properties. Methods: An archival collection of human temporal bones underwent micro-CT and 3D reconstruction. In addition, cochlea-facial distance was assessed in silicone and polyester resin molds, and the association between the LP and upper basal turn of the cochlea was analyzed. Results: Local thinning of the otic capsule and local anatomy may explain the development of cochlea-facial dehiscence, which was found in 1.4%. A reduced cochlea-facial distance was noted in 1 bone with a superior semicircular canal dehiscence but not in bones with superior semicircular canal "blue line." The otic capsule often impinged upon the LP and caused narrowing. Conclusion: Micro-CT with 3D rendering offers new possibilities to study the topographic anatomy of the human temporal bone. The varied shape of the cross-section of the LP could often be explained by an "intruding" cochlea. (C) 2017 S. Karger AG, Basel