Characteristic of the vertical and pyramidal segment of facial nerve canal / 临床耳鼻咽喉头颈外科杂志

ABSTRACT

OBJECTIVE@#To study the vertical and pyramidal segment of facial nerve canal based on three-dimensional reconstruction of temporal bone CT, and provide a quantitative data for the middle ear and mastoid surgery.@*METHOD@#Reconstruction of adult axial CT images shows the vertical and pyramidal segment of facial nerve canal. Using the Able Software 3D-DOCTOR 3.5 to show and measure the angle of the vertical and pyramidal segment of the facial nerve canal and to analyze the features and regularity based on the measured data.@*RESULT@#According to the angle of the vertical and pyramidal segment of facial nerve canal based on the three-dimensional reconstruction model. A certain regularity has been found in the direction and the angle of different segments of the vertical and pyramidal segment of facial nerve canal.@*CONCLUSION@#The temporal bone CT three-dimensional reconstruction can accurately show the characteristic and angle of the vertical and pyramidal segment of facial nerve canal. The characteristics and quantitative angle of the vertical and pyramidal segment of facial nerve canal from the anatomical viewpoint for clinical utility could keep the vertical and pyramidal segment of facial nerve from injury in temporal bone surgery.