title: Anatomic Landmarks for Localization of the Vertical Segment of Facial Nerve on Multislice CT Multiplanar Reconstruction Images.
abstract: The facial nerve decompression via mastoid is simple and easy to expose the vertical segment of the facial nerve (VFN). The objective of this study was to find out the relationship between the VFN and anatomic landmarks to facilitate prediction of the location of VFN during facial nerve decompression. The different landmarks were cochlear window (CW), oval window (OW), promontorium tympani (PT), and mastoid antrum (MA). Parameters of 140 patients (280 observations) with healthy middle ears were measured on high-resolution spiral multislice computed tomographic multiplanar reconstruction (MPR) images that were parallel to the base plane. The data gained were analyzed by statistical method and were also analyzed with respect to side and gender. The angle between orientation of VFN to the CW of the longest distance and horizontal axis was larger on the left side than that of the right (P < 0.05). Our results may provide more detailed information to predict the location of VFN during facial nerve decompression through mastoid.
authors.affiliation: *Department of the Human Anatomy, Norman Bethune Health Science Center of Jilin University, Changchun †Department of the Human Anatomy, Fenyang College Shanxi Medical University, Fenyang ‡Department of the Endocrinology and Metabolism, Norman Bethune Health Science Center of Jilin University §Department of the Radiology, Sino-Japanese Fellowship Hospital of Jilin University, Changchun, China.
authors.forename: Bichen
authors.initials: B
authors.lastname: Ren
authors.forename: Peng
authors.initials: P
authors.lastname: Bai
authors.forename: Tenghai
authors.initials: T
authors.lastname: Li
authors.forename: Hanfei
authors.initials: H
authors.lastname: Guo
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Siwen
authors.initials: S
authors.lastname: Zhang
authors.forename: Kailiang
authors.initials: K
authors.lastname: Cheng
authors.forename: Youqiong
authors.initials: Y
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D059925:Anatomic Landmarks / Q000000981:diagnostic imaging*; D004432:Ear, Middle / Q000000981:diagnostic imaging; D005154:Facial Nerve / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods*; D019635:Neurosurgical Procedures; D010046:Oval Window, Ear / Q000000981:diagnostic imaging; D012405:Round Window, Ear / Q000000981:diagnostic imaging; D036542:Tomography, Spiral Computed / Q000379:methods; D055815:Young Adult