内耳道

内耳道CT三维重建及内部结构解剖学研究

Three dimensional reconstruction of internal auditory meatus and anatomical study of the inner structures

结果MIP三维重建能满意显示两侧内耳膜迷路及内耳道的解剖结构，其中3个膜半规管、椭圆囊、球囊、蜗管及内耳道呈高信号。

Results Anatomic structures of membranous labyrinth and internal auditory meatus were well demonstrated in three-dimensional reconstructed images of MIP in all volunteers . All three semicircular ducts , utricle , saccule , cochlear duct and internal auditory meatus produced high intensity signal .

结果（1）CT断层薄扫可较好地显示骨迷路与内耳道后壁的关系及岩锥气化程度，高颈静脉球现象；

Results ( 1 ) CT thin tomographic scan can show relations between the posterior wall of the internal acoustic meatus and bone labyrinths ;

目的探讨内镜技术在切除内耳道（IAC）内听神经鞘瘤术中的价值。

To evaluate the application of endoscope in acoustic neuroma resection in internal auditory canal ( IAC ) .

ICA水平段与ICA膝部和内耳道内侧缘连线的夹角为67.1°±4.3°。

The angle between the horizontal ICA and the line which connects the ICA genu to the medial lip of the internal acoustic meatus is 67.1 ± 4.3 ° .

目的：观察国人颞骨岩部表面标志与内耳道（IAC）的空间位置关系，定位内耳道中点，为外科手术提供解剖基础。

Objectives : To study the space relationship among the landmarks on the surface of pyramidal wall and internal auditory canal ( IAC ) for the hearing preservation in the surgery .

另7个内耳道检查阴性，诊断准确率为100%。

In this group . The diagnostic accuracy rates was 100 % .

3例（5耳）患儿有内耳道扩大（35%）；

Patients demonstrated enlarged internal auditory meatus ( 4.2 % );

内耳道底的断面解剖学研究

Sectional Anatomy Study of the Bottom of Internal Acoustic Meatus

脑桥小脑角段和内耳道段与位听神经伴行；

The cerebellopontine angle segment and internal acoustic meatus segment paralleled the vestibulocochlear nerve .

国人颅中窝入路手术中一点法定位内耳道的相关解剖研究

The only point to identify the internal auditory canal during the middle cranial fossa surgery

前庭内壁对内耳道手术的解剖学研究

An anatomic study of medial wall of the vestibule for surgery of the internal auditory canal

单侧枕下乙状窦后入路磨开内耳道后壁与骨迷路保护

Suboccipital retrosigmoid approach drilling of the posterior wall of the internal acoustic meatus and preserving bone labyrinths of

面神经和位听神经在脑桥小脑角及内耳道的显微外科解剖

Microsurgical anatomy of the facial and the vestibulocochlear nerves at the pontocerebellar angle and the internal acoustic meatus

感音神经性听力障碍是内耳道的问题，偶尔是听力神经上的问题。

Sensorineural hearing impairment is a problem with the inner ear , or , occasionally with the hearing nerve .

目的：探讨经颅中窝入路确认内耳道的定位方法。

Objective : To describe a safe technique for identification of the internal auditory canal in middle fossa approach .

有时候，小晶体会从“胞囊”中掉出来，并进入到内耳道中。

Occasionally the little pebbles fall out of the utricle and can get into another part of the inner ear canals .

施行保留听力的前庭神经切断术时，尽可能选择暴露内耳道的术式。

The vestibular neurectomy was as performed as possible by exposing the internal auditory canal for the sake of preserving hearing .

结论保留听力的前庭神经切断术应尽量选择暴露内耳道的径路进行。

Conclusion For reserving hearing in vestibular neurectomy , it is better to choose the apprach of exposing internal auditory canal .

在任何年龄使用耳毒性药物，包括抗生素和抗疟药物，都可能损害内耳道。

The use of ototoxic drugs at any age , including some antibiotic and anti-malarial drugs , can damage the inner ear .

结论：本文测量数值，对临床上进行颅中窝进路的内耳道定位有较大的帮助。

Conclusion : These above data are very helpful for the location of IAM in the operation of middle cranial fossa approach .

结果：面神经小脑脑桥角段、内耳道段主要由小脑下前动脉发出的迷路动脉供应；

Results : Cerebellopontine segment and interauricular canal segment of the facial nerve were supplied by cerebellar inferior anterior artery ( labyrinthine artery );

内耳道畸形（8耳均伴随其他畸形）：内耳道缺如、狭窄或扩大。

Internal auditory canal malformations ( all of8 ears accompanied by other malformations ): The internal auditory canal was absent , narrowed or dilated .

结论：经颅中窝手术时，锤骨头可作为确认内耳道的安全可靠的解剖标志。

Conclusions : The head of malleus may serve as a reliable and safe landmark in the middle fossa surgery when other landmarks are unrecognizable .

结果：内耳道与岩大神经管裂孔、弓状隆起等结构有较恒定的位置关系。

Results : The location of internal auditory canal could be reliably defined by hiatus of canal for greater petrosal nerve , arcuate eminence and other structures .

结论：岩大神经管裂孔、弓状隆起等颞骨岩部结构是定位内耳道的重要标志。论岩体大爆破工程的勘测

Conclusion : The hiatus of canal for greater petrosal nerve and arcuate eminence are important landmarks to defined internal auditory canal . On Survey of Rock Mass Blasting

结果面神经颅内段分为五段，即脑桥小脑角段、内耳道段、迷路段、鼓室段和乳突段。

Results The facial nerve was divided into five segments , namely , cerebellopontine angle segment , internal acoustic meatus segment , labyrinthine segment , tympanum segment and mastoid segment .

譬如，在一只摇摇晃晃的船上，人体通过内耳道感受到这种晃动，但人眼却看不到，因为整只船相对于人体是静止的。

On a rocking boat , for example , the body senses the motion through the inner ear but cannot see the movement , as the entire boat appears to be still .

过量的噪音，包括机器轰鸣声、音乐声过响或其他噪音过大，如枪声或爆炸声，有可能损害内耳道，使听力减弱。

Excessive noise , including working with noisy machinery , exposure to loud music or other loud noises , such as gunfire or explosions , can damage the inner ear and weaken hearing ability .

结果常规横断面和冠状面可显示面、前庭蜗神经复合束，并可分层显示其在内耳道底的分支。

Results On the routine axial and coronal planes , the course of the facial and vestibulocochlear nerves complex were revealed , and its branches in the internal auditory canal were identified on different planes .