The tympanic and mastoid segments of facial nerve: the location on the oblique sagittal section and HRCT and clinical significance
ZHONG Bin, LI Qing-Feng, ZHOU Man, DUAN Ju-Ru, TUN Yang-Ning, HUANG Chang-Cheng
Chinese Journal of Clinical Anatomy ›› 2012, Vol. 30 ›› Issue (3) : 295-298.
The tympanic and mastoid segments of facial nerve: the location on the oblique sagittal section and HRCT and clinical significance
Objective To investigate the optimal scan baseline of the tympanic and mastoid segments of facial nerve on the oblique sagittal sections, and provide anatomic basis for image diagnosis and microsurgical application. Methods The high resolution CT was used to scan 16 cadaveric specimens (32 ears) on the oblique sagittal plane，after that, celloidin embedding was used to cut and obtain oblique sagittal sections of temporal bone with the thickness of 1mm. CT and specimen section images were analyzed and compared. Results All of 16 specimens (32 ears) showed the course of tympanic and mastoid segments of facial nerve on CT oblique sagittal plane, with the length of （23.58±1.44）mm. The distance from the tympanic segment to external semicircular canal was（0.75±0.12）mm，from tympanic segment of the facial nerve to the tympanic cavity （0.34±0.08）mm，and the angle between tympanic segment and mastoid segment was（108.880±2.490）. Conclusions The oblique sagittal HRCT images combined with the corresponding specimen sections are reliable for displaying the tympanic and mastoid segments of facial nerve and its surrounding structures. The best vision can be get on the oblique sagital plane, which formed the angle of（21.400±4.350）with the median sagittal plane .
Tympanic and mastoid segment of facial nerve / HRCT / Oblique sagittal / Section anatomy
[1] Swartz JD．The facial nerve canal: CT analysis of the protruding tympanic egement
[J]. Radiology, 1984,153(2): 443-447.
[2] 杜长生，王社军，王建祯，等. 面神经颞骨内段显微解剖及其临床意义
[J].中国临床解剖学杂，2010, 28(2):119-122.
[3] 王君玉，党瑞山，卢亦成，等.面神经乳突段的应用解剖
[J].中国临床解剖学杂，2011,29（2）：131-134.
[4] 朱富高，孙美红，张俊瑶，等. 面神经鼓乳段定位及术中面瘫预防
[J].临床耳鼻咽喉头颈外科杂志，2011, 25(7):314-316.
[5] 段菊如，张博，钟斌，等.面神经垂直段在横、冠状断层和CT上的定位及临床意义
[J].中国临床解剖学杂，2008, 26(2):124-126.
[6] Teresi L，Lufkin R，Wortham D，et al. MR imaging of the intratemporal facial nerve by using a surface coil
[ J].AJR，1987, 148(3): 589-594.
[7] 于海玲，鞠建宝，徐志鹏，等. 国人颞骨内鼓乳段面神经的 MR 斜矢状位影像解剖学研究
[J]. 中华实用诊断与治疗杂志，2009, 23(8):757-759.
[8] 于海玲，徐志鹏，许安廷.正常人鼓乳段面神经MRI斜矢状位影像解剖学研究
[J].中华实用诊断与治疗杂志，2010, 24(2):140-142.
[9] 孟庆玲，韩卉，柏亚，等. 15例成年国人颞骨内部结构CT解剖学
[J].中国临床解剖学杂，2007, 25(5):507-510.
[10]倪玉苏，李华伟.垂直段及锥曲段面神经管的走行特点
[J].临床耳鼻咽喉头颈外科杂志，2010, 24(22): 1009-1011、1015.
[11]李志海，吕静瑶，陶宝鸿，等. 经乳突-上鼓室入路面神经手术主要解剖标志的多螺旋双斜位CT多平面重建
[J].临床耳鼻咽喉头颈外科杂志，2011, 25(19): 865-868.
[12]陈青华，刘澄，刘凯，等.多层CT面神经管MPR双斜位成像方法
[J].医学影像学杂志，2006，16(6):541-544.
[13]宁文德，董季平，杨军乐，等. 面神经管的多层螺旋CT曲面重建
[J].中华放射学杂志，2003，37(11):1021-1024.
[14]张英，杨英，马新春，等.颞骨内面神经各段的实际测量与利用高分辨率CT测量的比较研究
[J].青海医学院学报，2010, 31(3):170-175.
[15]张博，杨景武，王航辉，等.面神经颞骨内段斜矢状断层切片与HRCT图像对照研究
[J].中国临床解剖学杂，2010, 28(1):34-36.
[16] Minor LB. Superior canal dehiscence syndrome
[J]. Am J Otol，2000, 21(1):9~19.
[17]Minor LB, Solomon D, Zinreich JS, et al. Sound- and/or pressureinduced vertigo due to bone dehiscence of the superior semicircular canal
[J]. Arch Otolaryngol Head Neck Surg，1998, 124(3):249-258.
[18]Krombach GA, DiMartino E, Schmitz-Rode T, et al. Posterior semicircular canal dehiscence: a morphologic cause of vertigo similar to superior semicircular canal dehiscence
[J].Eur Radiol, 2003, 13(6):1444-1450.
/
| 〈 |
|
〉 |
